20609460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1877}}^1$

素因数の和:1953

約数の個数: 72

約数和(自身を含む): 63574056

約数和(自身を除く): 42964596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 1877, 2196, 2745, 3660, 3754, 5490, 5631, 7508, 9385, 10980, 11262, 16893, 18770, 22524, 28155, 33786, 37540, 56310, 67572, 84465, 112620, 114497, 168930, 228994, 337860, 343491, 457988, 572485, 686982, 1030473, 1144970, 1373964, 1717455, 2060946, 2289940, 3434910, 4121892, 5152365, 6869820, 10304730, 20609460]

約数ペア:

[(1, 20609460), (2, 10304730), (3, 6869820), (4, 5152365), (5, 4121892), (6, 3434910), (9, 2289940), (10, 2060946), (12, 1717455), (15, 1373964), (18, 1144970), (20, 1030473), (30, 686982), (36, 572485), (45, 457988), (60, 343491), (61, 337860), (90, 228994), (122, 168930), (180, 114497), (183, 112620), (244, 84465), (305, 67572), (366, 56310), (549, 37540), (610, 33786), (732, 28155), (915, 22524), (1098, 18770), (1220, 16893), (1830, 11262), (1877, 10980), (2196, 9385), (2745, 7508), (3660, 5631), (3754, 5490)]