30993560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3137}}^1$

素因数の和:3180

約数の個数: 64

約数和(自身を含む): 79077600

約数和(自身を除く): 48084040

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 3137, 4940, 6274, 9880, 12548, 15685, 25096, 31370, 40781, 59603, 62740, 81562, 119206, 125480, 163124, 203905, 238412, 298015, 326248, 407810, 476824, 596030, 774839, 815620, 1192060, 1549678, 1631240, 2384120, 3099356, 3874195, 6198712, 7748390, 15496780, 30993560]

約数ペア:

[(1, 30993560), (2, 15496780), (4, 7748390), (5, 6198712), (8, 3874195), (10, 3099356), (13, 2384120), (19, 1631240), (20, 1549678), (26, 1192060), (38, 815620), (40, 774839), (52, 596030), (65, 476824), (76, 407810), (95, 326248), (104, 298015), (130, 238412), (152, 203905), (190, 163124), (247, 125480), (260, 119206), (380, 81562), (494, 62740), (520, 59603), (760, 40781), (988, 31370), (1235, 25096), (1976, 15685), (2470, 12548), (3137, 9880), (4940, 6274)]