81980340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1723}}^1$

素因数の和:1809

約数の個数: 96

約数和(自身を含む): 251400576

約数和(自身を除く): 169420236

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 61, 65, 78, 122, 130, 156, 183, 195, 244, 260, 305, 366, 390, 610, 732, 780, 793, 915, 1220, 1586, 1723, 1830, 2379, 3172, 3446, 3660, 3965, 4758, 5169, 6892, 7930, 8615, 9516, 10338, 11895, 15860, 17230, 20676, 22399, 23790, 25845, 34460, 44798, 47580, 51690, 67197, 89596, 103380, 105103, 111995, 134394, 210206, 223990, 268788, 315309, 335985, 420412, 447980, 525515, 630618, 671970, 1051030, 1261236, 1343940, 1366339, 1576545, 2102060, 2732678, 3153090, 4099017, 5465356, 6306180, 6831695, 8198034, 13663390, 16396068, 20495085, 27326780, 40990170, 81980340]

約数ペア:

[(1, 81980340), (2, 40990170), (3, 27326780), (4, 20495085), (5, 16396068), (6, 13663390), (10, 8198034), (12, 6831695), (13, 6306180), (15, 5465356), (20, 4099017), (26, 3153090), (30, 2732678), (39, 2102060), (52, 1576545), (60, 1366339), (61, 1343940), (65, 1261236), (78, 1051030), (122, 671970), (130, 630618), (156, 525515), (183, 447980), (195, 420412), (244, 335985), (260, 315309), (305, 268788), (366, 223990), (390, 210206), (610, 134394), (732, 111995), (780, 105103), (793, 103380), (915, 89596), (1220, 67197), (1586, 51690), (1723, 47580), (1830, 44798), (2379, 34460), (3172, 25845), (3446, 23790), (3660, 22399), (3965, 20676), (4758, 17230), (5169, 15860), (6892, 11895), (7930, 10338), (8615, 9516)]