18016740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:282

約数の個数: 144

約数和(自身を含む): 63598080

約数和(自身を除く): 45581340

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 79, 84, 90, 105, 126, 140, 158, 180, 181, 210, 237, 252, 315, 316, 362, 395, 420, 474, 543, 553, 630, 711, 724, 790, 905, 948, 1086, 1106, 1185, 1260, 1267, 1422, 1580, 1629, 1659, 1810, 2172, 2212, 2370, 2534, 2715, 2765, 2844, 3258, 3318, 3555, 3620, 3801, 4740, 4977, 5068, 5430, 5530, 6335, 6516, 6636, 7110, 7602, 8145, 8295, 9954, 10860, 11060, 11403, 12670, 14220, 14299, 15204, 16290, 16590, 19005, 19908, 22806, 24885, 25340, 28598, 32580, 33180, 38010, 42897, 45612, 49770, 57015, 57196, 71495, 76020, 85794, 99540, 100093, 114030, 128691, 142990, 171588, 200186, 214485, 228060, 257382, 285980, 300279, 400372, 428970, 500465, 514764, 600558, 643455, 857940, 900837, 1000930, 1201116, 1286910, 1501395, 1801674, 2001860, 2573820, 3002790, 3603348, 4504185, 6005580, 9008370, 18016740]

約数ペア:

[(1, 18016740), (2, 9008370), (3, 6005580), (4, 4504185), (5, 3603348), (6, 3002790), (7, 2573820), (9, 2001860), (10, 1801674), (12, 1501395), (14, 1286910), (15, 1201116), (18, 1000930), (20, 900837), (21, 857940), (28, 643455), (30, 600558), (35, 514764), (36, 500465), (42, 428970), (45, 400372), (60, 300279), (63, 285980), (70, 257382), (79, 228060), (84, 214485), (90, 200186), (105, 171588), (126, 142990), (140, 128691), (158, 114030), (180, 100093), (181, 99540), (210, 85794), (237, 76020), (252, 71495), (315, 57196), (316, 57015), (362, 49770), (395, 45612), (420, 42897), (474, 38010), (543, 33180), (553, 32580), (630, 28598), (711, 25340), (724, 24885), (790, 22806), (905, 19908), (948, 19005), (1086, 16590), (1106, 16290), (1185, 15204), (1260, 14299), (1267, 14220), (1422, 12670), (1580, 11403), (1629, 11060), (1659, 10860), (1810, 9954), (2172, 8295), (2212, 8145), (2370, 7602), (2534, 7110), (2715, 6636), (2765, 6516), (2844, 6335), (3258, 5530), (3318, 5430), (3555, 5068), (3620, 4977), (3801, 4740)]