642257460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:575

約数の個数: 216

約数和(自身を含む): 2163024864

約数和(自身を除く): 1520767404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 43, 45, 52, 60, 65, 78, 86, 90, 117, 129, 130, 156, 169, 172, 180, 195, 215, 234, 258, 260, 338, 387, 390, 430, 468, 491, 507, 516, 559, 585, 645, 676, 774, 780, 845, 860, 982, 1014, 1118, 1170, 1290, 1473, 1521, 1548, 1677, 1690, 1935, 1964, 2028, 2236, 2340, 2455, 2535, 2580, 2795, 2946, 3042, 3354, 3380, 3870, 4419, 4910, 5031, 5070, 5590, 5892, 6084, 6383, 6708, 7267, 7365, 7605, 7740, 8385, 8838, 9820, 10062, 10140, 11180, 12766, 14534, 14730, 15210, 16770, 17676, 19149, 20124, 21113, 21801, 22095, 25155, 25532, 29068, 29460, 30420, 31915, 33540, 36335, 38298, 42226, 43602, 44190, 50310, 57447, 63339, 63830, 65403, 72670, 76596, 82979, 84452, 87204, 88380, 95745, 100620, 105565, 109005, 114894, 126678, 127660, 130806, 145340, 165958, 190017, 191490, 211130, 218010, 229788, 248937, 253356, 261612, 274469, 287235, 316695, 327015, 331916, 380034, 382980, 414895, 422260, 436020, 497874, 548938, 574470, 633390, 654030, 746811, 760068, 823407, 829790, 950085, 995748, 1097876, 1148940, 1244685, 1266780, 1308060, 1372345, 1493622, 1646814, 1659580, 1900170, 2470221, 2489370, 2744690, 2987244, 3293628, 3568097, 3734055, 3800340, 4117035, 4940442, 4978740, 5489380, 7136194, 7468110, 8234070, 9880884, 10704291, 12351105, 14272388, 14936220, 16468140, 17840485, 21408582, 24702210, 32112873, 35680970, 42817164, 49404420, 53521455, 64225746, 71361940, 107042910, 128451492, 160564365, 214085820, 321128730, 642257460]

約数ペア:

[(1, 642257460), (2, 321128730), (3, 214085820), (4, 160564365), (5, 128451492), (6, 107042910), (9, 71361940), (10, 64225746), (12, 53521455), (13, 49404420), (15, 42817164), (18, 35680970), (20, 32112873), (26, 24702210), (30, 21408582), (36, 17840485), (39, 16468140), (43, 14936220), (45, 14272388), (52, 12351105), (60, 10704291), (65, 9880884), (78, 8234070), (86, 7468110), (90, 7136194), (117, 5489380), (129, 4978740), (130, 4940442), (156, 4117035), (169, 3800340), (172, 3734055), (180, 3568097), (195, 3293628), (215, 2987244), (234, 2744690), (258, 2489370), (260, 2470221), (338, 1900170), (387, 1659580), (390, 1646814), (430, 1493622), (468, 1372345), (491, 1308060), (507, 1266780), (516, 1244685), (559, 1148940), (585, 1097876), (645, 995748), (676, 950085), (774, 829790), (780, 823407), (845, 760068), (860, 746811), (982, 654030), (1014, 633390), (1118, 574470), (1170, 548938), (1290, 497874), (1473, 436020), (1521, 422260), (1548, 414895), (1677, 382980), (1690, 380034), (1935, 331916), (1964, 327015), (2028, 316695), (2236, 287235), (2340, 274469), (2455, 261612), (2535, 253356), (2580, 248937), (2795, 229788), (2946, 218010), (3042, 211130), (3354, 191490), (3380, 190017), (3870, 165958), (4419, 145340), (4910, 130806), (5031, 127660), (5070, 126678), (5590, 114894), (5892, 109005), (6084, 105565), (6383, 100620), (6708, 95745), (7267, 88380), (7365, 87204), (7605, 84452), (7740, 82979), (8385, 76596), (8838, 72670), (9820, 65403), (10062, 63830), (10140, 63339), (11180, 57447), (12766, 50310), (14534, 44190), (14730, 43602), (15210, 42226), (16770, 38298), (17676, 36335), (19149, 33540), (20124, 31915), (21113, 30420), (21801, 29460), (22095, 29068), (25155, 25532)]