64914980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4093}}^1$

素因数の和:4176

約数の個数: 48

約数和(自身を含む): 149250864

約数和(自身を除く): 84335884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 4093, 7930, 8186, 15860, 16372, 20465, 40930, 53209, 81860, 106418, 212836, 249673, 266045, 499346, 532090, 998692, 1064180, 1248365, 2496730, 3245749, 4993460, 6491498, 12982996, 16228745, 32457490, 64914980]

約数ペア:

[(1, 64914980), (2, 32457490), (4, 16228745), (5, 12982996), (10, 6491498), (13, 4993460), (20, 3245749), (26, 2496730), (52, 1248365), (61, 1064180), (65, 998692), (122, 532090), (130, 499346), (244, 266045), (260, 249673), (305, 212836), (610, 106418), (793, 81860), (1220, 53209), (1586, 40930), (3172, 20465), (3965, 16372), (4093, 15860), (7930, 8186)]