68689660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^2\times {\mathrm{71}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 160157088

約数和(自身を除く): 91467428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 71, 122, 130, 142, 244, 260, 284, 305, 355, 610, 710, 793, 923, 1220, 1420, 1586, 1846, 3172, 3692, 3721, 3965, 4331, 4615, 7442, 7930, 8662, 9230, 14884, 15860, 17324, 18460, 18605, 21655, 37210, 43310, 48373, 56303, 74420, 86620, 96746, 112606, 193492, 225212, 241865, 264191, 281515, 483730, 528382, 563030, 967460, 1056764, 1126060, 1320955, 2641910, 3434483, 5283820, 6868966, 13737932, 17172415, 34344830, 68689660]

約数ペア:

[(1, 68689660), (2, 34344830), (4, 17172415), (5, 13737932), (10, 6868966), (13, 5283820), (20, 3434483), (26, 2641910), (52, 1320955), (61, 1126060), (65, 1056764), (71, 967460), (122, 563030), (130, 528382), (142, 483730), (244, 281515), (260, 264191), (284, 241865), (305, 225212), (355, 193492), (610, 112606), (710, 96746), (793, 86620), (923, 74420), (1220, 56303), (1420, 48373), (1586, 43310), (1846, 37210), (3172, 21655), (3692, 18605), (3721, 18460), (3965, 17324), (4331, 15860), (4615, 14884), (7442, 9230), (7930, 8662)]