245212760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{27739}}^1$

素因数の和:27780

約数の個数: 64

約数和(自身を含む): 629143200

約数和(自身を除く): 383930440

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 8840, 27739, 55478, 110956, 138695, 221912, 277390, 360607, 471563, 554780, 721214, 943126, 1109560, 1442428, 1803035, 1886252, 2357815, 2884856, 3606070, 3772504, 4715630, 6130319, 7212140, 9431260, 12260638, 14424280, 18862520, 24521276, 30651595, 49042552, 61303190, 122606380, 245212760]

約数ペア:

[(1, 245212760), (2, 122606380), (4, 61303190), (5, 49042552), (8, 30651595), (10, 24521276), (13, 18862520), (17, 14424280), (20, 12260638), (26, 9431260), (34, 7212140), (40, 6130319), (52, 4715630), (65, 3772504), (68, 3606070), (85, 2884856), (104, 2357815), (130, 1886252), (136, 1803035), (170, 1442428), (221, 1109560), (260, 943126), (340, 721214), (442, 554780), (520, 471563), (680, 360607), (884, 277390), (1105, 221912), (1768, 138695), (2210, 110956), (4420, 55478), (8840, 27739)]