20396220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:435

約数の個数: 96

約数和(自身を含む): 62469120

約数和(自身を除く): 42072900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 79, 130, 156, 158, 195, 237, 260, 316, 331, 390, 395, 474, 662, 780, 790, 948, 993, 1027, 1185, 1324, 1580, 1655, 1986, 2054, 2370, 3081, 3310, 3972, 4108, 4303, 4740, 4965, 5135, 6162, 6620, 8606, 9930, 10270, 12324, 12909, 15405, 17212, 19860, 20540, 21515, 25818, 26149, 30810, 43030, 51636, 52298, 61620, 64545, 78447, 86060, 104596, 129090, 130745, 156894, 258180, 261490, 313788, 339937, 392235, 522980, 679874, 784470, 1019811, 1359748, 1568940, 1699685, 2039622, 3399370, 4079244, 5099055, 6798740, 10198110, 20396220]

約数ペア:

[(1, 20396220), (2, 10198110), (3, 6798740), (4, 5099055), (5, 4079244), (6, 3399370), (10, 2039622), (12, 1699685), (13, 1568940), (15, 1359748), (20, 1019811), (26, 784470), (30, 679874), (39, 522980), (52, 392235), (60, 339937), (65, 313788), (78, 261490), (79, 258180), (130, 156894), (156, 130745), (158, 129090), (195, 104596), (237, 86060), (260, 78447), (316, 64545), (331, 61620), (390, 52298), (395, 51636), (474, 43030), (662, 30810), (780, 26149), (790, 25818), (948, 21515), (993, 20540), (1027, 19860), (1185, 17212), (1324, 15405), (1580, 12909), (1655, 12324), (1986, 10270), (2054, 9930), (2370, 8606), (3081, 6620), (3310, 6162), (3972, 5135), (4108, 4965), (4303, 4740)]