2988440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:852

約数の個数: 64

約数和(自身を含む): 8285760

約数和(自身を除く): 5297320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 821, 910, 1642, 1820, 3284, 3640, 4105, 5747, 6568, 8210, 10673, 11494, 16420, 21346, 22988, 28735, 32840, 42692, 45976, 53365, 57470, 74711, 85384, 106730, 114940, 149422, 213460, 229880, 298844, 373555, 426920, 597688, 747110, 1494220, 2988440]

約数ペア:

[(1, 2988440), (2, 1494220), (4, 747110), (5, 597688), (7, 426920), (8, 373555), (10, 298844), (13, 229880), (14, 213460), (20, 149422), (26, 114940), (28, 106730), (35, 85384), (40, 74711), (52, 57470), (56, 53365), (65, 45976), (70, 42692), (91, 32840), (104, 28735), (130, 22988), (140, 21346), (182, 16420), (260, 11494), (280, 10673), (364, 8210), (455, 6568), (520, 5747), (728, 4105), (821, 3640), (910, 3284), (1642, 1820)]