28155160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1049}}^1$

素因数の和:1132

約数の個数: 64

約数和(自身を含む): 70308000

約数和(自身を除く): 42152840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 61, 88, 110, 122, 220, 244, 305, 440, 488, 610, 671, 1049, 1220, 1342, 2098, 2440, 2684, 3355, 4196, 5245, 5368, 6710, 8392, 10490, 11539, 13420, 20980, 23078, 26840, 41960, 46156, 57695, 63989, 92312, 115390, 127978, 230780, 255956, 319945, 461560, 511912, 639890, 703879, 1279780, 1407758, 2559560, 2815516, 3519395, 5631032, 7038790, 14077580, 28155160]

約数ペア:

[(1, 28155160), (2, 14077580), (4, 7038790), (5, 5631032), (8, 3519395), (10, 2815516), (11, 2559560), (20, 1407758), (22, 1279780), (40, 703879), (44, 639890), (55, 511912), (61, 461560), (88, 319945), (110, 255956), (122, 230780), (220, 127978), (244, 115390), (305, 92312), (440, 63989), (488, 57695), (610, 46156), (671, 41960), (1049, 26840), (1220, 23078), (1342, 20980), (2098, 13420), (2440, 11539), (2684, 10490), (3355, 8392), (4196, 6710), (5245, 5368)]