11990970

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:604

約数の個数: 64

約数和(自身を含む): 32400000

約数和(自身を除く): 20409030

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 89, 90, 135, 178, 267, 270, 445, 499, 534, 801, 890, 998, 1335, 1497, 1602, 2403, 2495, 2670, 2994, 4005, 4491, 4806, 4990, 7485, 8010, 8982, 12015, 13473, 14970, 22455, 24030, 26946, 44411, 44910, 67365, 88822, 133233, 134730, 222055, 266466, 399699, 444110, 666165, 799398, 1199097, 1332330, 1998495, 2398194, 3996990, 5995485, 11990970]

約数ペア:

[(1, 11990970), (2, 5995485), (3, 3996990), (5, 2398194), (6, 1998495), (9, 1332330), (10, 1199097), (15, 799398), (18, 666165), (27, 444110), (30, 399699), (45, 266466), (54, 222055), (89, 134730), (90, 133233), (135, 88822), (178, 67365), (267, 44910), (270, 44411), (445, 26946), (499, 24030), (534, 22455), (801, 14970), (890, 13473), (998, 12015), (1335, 8982), (1497, 8010), (1602, 7485), (2403, 4990), (2495, 4806), (2670, 4491), (2994, 4005)]