18709860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{83}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 60653376

約数和(自身を除く): 41943516

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 83, 85, 102, 130, 156, 166, 170, 195, 204, 221, 249, 255, 260, 289, 332, 340, 390, 415, 442, 498, 510, 578, 663, 780, 830, 867, 884, 996, 1020, 1079, 1105, 1156, 1245, 1326, 1411, 1445, 1660, 1734, 2158, 2210, 2490, 2652, 2822, 2890, 3237, 3315, 3468, 3757, 4233, 4316, 4335, 4420, 4980, 5395, 5644, 5780, 6474, 6630, 7055, 7514, 8466, 8670, 10790, 11271, 12948, 13260, 14110, 15028, 16185, 16932, 17340, 18343, 18785, 21165, 21580, 22542, 23987, 28220, 32370, 36686, 37570, 42330, 45084, 47974, 55029, 56355, 64740, 71961, 73372, 75140, 84660, 91715, 95948, 110058, 112710, 119935, 143922, 183430, 220116, 225420, 239870, 275145, 287844, 311831, 359805, 366860, 479740, 550290, 623662, 719610, 935493, 1100580, 1247324, 1439220, 1559155, 1870986, 3118310, 3741972, 4677465, 6236620, 9354930, 18709860]

約数ペア:

[(1, 18709860), (2, 9354930), (3, 6236620), (4, 4677465), (5, 3741972), (6, 3118310), (10, 1870986), (12, 1559155), (13, 1439220), (15, 1247324), (17, 1100580), (20, 935493), (26, 719610), (30, 623662), (34, 550290), (39, 479740), (51, 366860), (52, 359805), (60, 311831), (65, 287844), (68, 275145), (78, 239870), (83, 225420), (85, 220116), (102, 183430), (130, 143922), (156, 119935), (166, 112710), (170, 110058), (195, 95948), (204, 91715), (221, 84660), (249, 75140), (255, 73372), (260, 71961), (289, 64740), (332, 56355), (340, 55029), (390, 47974), (415, 45084), (442, 42330), (498, 37570), (510, 36686), (578, 32370), (663, 28220), (780, 23987), (830, 22542), (867, 21580), (884, 21165), (996, 18785), (1020, 18343), (1079, 17340), (1105, 16932), (1156, 16185), (1245, 15028), (1326, 14110), (1411, 13260), (1445, 12948), (1660, 11271), (1734, 10790), (2158, 8670), (2210, 8466), (2490, 7514), (2652, 7055), (2822, 6630), (2890, 6474), (3237, 5780), (3315, 5644), (3468, 5395), (3757, 4980), (4233, 4420), (4316, 4335)]