31460520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:144

約数の個数: 256

約数和(自身を含む): 120637440

約数和(自身を除く): 89176920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 43, 52, 56, 60, 65, 67, 70, 78, 84, 86, 91, 104, 105, 120, 129, 130, 134, 140, 156, 168, 172, 182, 195, 201, 210, 215, 258, 260, 268, 273, 280, 301, 312, 335, 344, 364, 390, 402, 420, 430, 455, 469, 516, 520, 536, 546, 559, 602, 645, 670, 728, 780, 804, 840, 860, 871, 903, 910, 938, 1005, 1032, 1092, 1118, 1204, 1290, 1340, 1365, 1407, 1505, 1560, 1608, 1677, 1720, 1742, 1806, 1820, 1876, 2010, 2184, 2236, 2345, 2408, 2580, 2613, 2680, 2730, 2795, 2814, 2881, 3010, 3354, 3484, 3612, 3640, 3752, 3913, 4020, 4355, 4472, 4515, 4690, 5160, 5226, 5460, 5590, 5628, 5762, 6020, 6097, 6708, 6968, 7035, 7224, 7826, 8040, 8385, 8643, 8710, 9030, 9380, 10452, 10920, 11180, 11256, 11524, 11739, 12040, 12194, 13065, 13416, 14070, 14405, 15652, 16770, 17286, 17420, 18060, 18291, 18760, 19565, 20167, 20904, 22360, 23048, 23478, 24388, 26130, 28140, 28810, 30485, 31304, 33540, 34572, 34840, 36120, 36582, 37453, 39130, 40334, 43215, 46956, 48776, 52260, 56280, 57620, 58695, 60501, 60970, 67080, 69144, 73164, 74906, 78260, 80668, 86430, 91455, 93912, 100835, 104520, 112359, 115240, 117390, 121002, 121940, 146328, 149812, 156520, 161336, 172860, 182910, 187265, 201670, 224718, 234780, 242004, 243880, 262171, 299624, 302505, 345720, 365820, 374530, 403340, 449436, 469560, 484008, 524342, 561795, 605010, 731640, 749060, 786513, 806680, 898872, 1048684, 1123590, 1210020, 1310855, 1498120, 1573026, 2097368, 2247180, 2420040, 2621710, 3146052, 3932565, 4494360, 5243420, 6292104, 7865130, 10486840, 15730260, 31460520]

約数ペア:

[(1, 31460520), (2, 15730260), (3, 10486840), (4, 7865130), (5, 6292104), (6, 5243420), (7, 4494360), (8, 3932565), (10, 3146052), (12, 2621710), (13, 2420040), (14, 2247180), (15, 2097368), (20, 1573026), (21, 1498120), (24, 1310855), (26, 1210020), (28, 1123590), (30, 1048684), (35, 898872), (39, 806680), (40, 786513), (42, 749060), (43, 731640), (52, 605010), (56, 561795), (60, 524342), (65, 484008), (67, 469560), (70, 449436), (78, 403340), (84, 374530), (86, 365820), (91, 345720), (104, 302505), (105, 299624), (120, 262171), (129, 243880), (130, 242004), (134, 234780), (140, 224718), (156, 201670), (168, 187265), (172, 182910), (182, 172860), (195, 161336), (201, 156520), (210, 149812), (215, 146328), (258, 121940), (260, 121002), (268, 117390), (273, 115240), (280, 112359), (301, 104520), (312, 100835), (335, 93912), (344, 91455), (364, 86430), (390, 80668), (402, 78260), (420, 74906), (430, 73164), (455, 69144), (469, 67080), (516, 60970), (520, 60501), (536, 58695), (546, 57620), (559, 56280), (602, 52260), (645, 48776), (670, 46956), (728, 43215), (780, 40334), (804, 39130), (840, 37453), (860, 36582), (871, 36120), (903, 34840), (910, 34572), (938, 33540), (1005, 31304), (1032, 30485), (1092, 28810), (1118, 28140), (1204, 26130), (1290, 24388), (1340, 23478), (1365, 23048), (1407, 22360), (1505, 20904), (1560, 20167), (1608, 19565), (1677, 18760), (1720, 18291), (1742, 18060), (1806, 17420), (1820, 17286), (1876, 16770), (2010, 15652), (2184, 14405), (2236, 14070), (2345, 13416), (2408, 13065), (2580, 12194), (2613, 12040), (2680, 11739), (2730, 11524), (2795, 11256), (2814, 11180), (2881, 10920), (3010, 10452), (3354, 9380), (3484, 9030), (3612, 8710), (3640, 8643), (3752, 8385), (3913, 8040), (4020, 7826), (4355, 7224), (4472, 7035), (4515, 6968), (4690, 6708), (5160, 6097), (5226, 6020), (5460, 5762), (5590, 5628)]