20719430820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{18787}}^1$

素因数の和:19370

約数の個数: 144

約数和(自身を含む): 68689228608

約数和(自身を除く): 47969797788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 557, 660, 990, 1114, 1671, 1980, 2228, 2785, 3342, 5013, 5570, 6127, 6684, 8355, 10026, 11140, 12254, 16710, 18381, 18787, 20052, 24508, 25065, 30635, 33420, 36762, 37574, 50130, 55143, 56361, 61270, 73524, 75148, 91905, 93935, 100260, 110286, 112722, 122540, 169083, 183810, 187870, 206657, 220572, 225444, 275715, 281805, 338166, 367620, 375740, 413314, 551430, 563610, 619971, 676332, 826628, 845415, 1033285, 1102860, 1127220, 1239942, 1690830, 1859913, 2066570, 2479884, 3099855, 3381660, 3719826, 4133140, 6199710, 7439652, 9299565, 10464359, 12399420, 18599130, 20928718, 31393077, 37198260, 41857436, 52321795, 62786154, 94179231, 104643590, 115107949, 125572308, 156965385, 188358462, 209287180, 230215898, 313930770, 345323847, 376716924, 460431796, 470896155, 575539745, 627861540, 690647694, 941792310, 1035971541, 1151079490, 1381295388, 1726619235, 1883584620, 2071943082, 2302158980, 3453238470, 4143886164, 5179857705, 6906476940, 10359715410, 20719430820]

約数ペア:

[(1, 20719430820), (2, 10359715410), (3, 6906476940), (4, 5179857705), (5, 4143886164), (6, 3453238470), (9, 2302158980), (10, 2071943082), (11, 1883584620), (12, 1726619235), (15, 1381295388), (18, 1151079490), (20, 1035971541), (22, 941792310), (30, 690647694), (33, 627861540), (36, 575539745), (44, 470896155), (45, 460431796), (55, 376716924), (60, 345323847), (66, 313930770), (90, 230215898), (99, 209287180), (110, 188358462), (132, 156965385), (165, 125572308), (180, 115107949), (198, 104643590), (220, 94179231), (330, 62786154), (396, 52321795), (495, 41857436), (557, 37198260), (660, 31393077), (990, 20928718), (1114, 18599130), (1671, 12399420), (1980, 10464359), (2228, 9299565), (2785, 7439652), (3342, 6199710), (5013, 4133140), (5570, 3719826), (6127, 3381660), (6684, 3099855), (8355, 2479884), (10026, 2066570), (11140, 1859913), (12254, 1690830), (16710, 1239942), (18381, 1127220), (18787, 1102860), (20052, 1033285), (24508, 845415), (25065, 826628), (30635, 676332), (33420, 619971), (36762, 563610), (37574, 551430), (50130, 413314), (55143, 375740), (56361, 367620), (61270, 338166), (73524, 281805), (75148, 275715), (91905, 225444), (93935, 220572), (100260, 206657), (110286, 187870), (112722, 183810), (122540, 169083)]