28980710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 58777488

約数和(自身を除く): 29796778

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 121, 215, 242, 430, 473, 557, 605, 946, 1114, 1210, 2365, 2785, 4730, 5203, 5570, 6127, 10406, 12254, 23951, 26015, 30635, 47902, 52030, 61270, 67397, 119755, 134794, 239510, 263461, 336985, 526922, 673970, 1317305, 2634610, 2898071, 5796142, 14490355, 28980710]

約数ペア:

[(1, 28980710), (2, 14490355), (5, 5796142), (10, 2898071), (11, 2634610), (22, 1317305), (43, 673970), (55, 526922), (86, 336985), (110, 263461), (121, 239510), (215, 134794), (242, 119755), (430, 67397), (473, 61270), (557, 52030), (605, 47902), (946, 30635), (1114, 26015), (1210, 23951), (2365, 12254), (2785, 10406), (4730, 6127), (5203, 5570)]