2980120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 7892640

約数和(自身を除く): 4912520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 521, 572, 715, 1042, 1144, 1430, 2084, 2605, 2860, 4168, 5210, 5720, 5731, 6773, 10420, 11462, 13546, 20840, 22924, 27092, 28655, 33865, 45848, 54184, 57310, 67730, 74503, 114620, 135460, 149006, 229240, 270920, 298012, 372515, 596024, 745030, 1490060, 2980120]

約数ペア:

[(1, 2980120), (2, 1490060), (4, 745030), (5, 596024), (8, 372515), (10, 298012), (11, 270920), (13, 229240), (20, 149006), (22, 135460), (26, 114620), (40, 74503), (44, 67730), (52, 57310), (55, 54184), (65, 45848), (88, 33865), (104, 28655), (110, 27092), (130, 22924), (143, 20840), (220, 13546), (260, 11462), (286, 10420), (440, 6773), (520, 5731), (521, 5720), (572, 5210), (715, 4168), (1042, 2860), (1144, 2605), (1430, 2084)]