2581280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:118

約数の個数: 96

約数和(自身を含む): 7048944

約数和(自身を除く): 4467664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 65, 68, 73, 80, 85, 104, 130, 136, 146, 160, 170, 208, 221, 260, 272, 292, 340, 365, 416, 442, 520, 544, 584, 680, 730, 884, 949, 1040, 1105, 1168, 1241, 1360, 1460, 1768, 1898, 2080, 2210, 2336, 2482, 2720, 2920, 3536, 3796, 4420, 4745, 4964, 5840, 6205, 7072, 7592, 8840, 9490, 9928, 11680, 12410, 15184, 16133, 17680, 18980, 19856, 24820, 30368, 32266, 35360, 37960, 39712, 49640, 64532, 75920, 80665, 99280, 129064, 151840, 161330, 198560, 258128, 322660, 516256, 645320, 1290640, 2581280]

約数ペア:

[(1, 2581280), (2, 1290640), (4, 645320), (5, 516256), (8, 322660), (10, 258128), (13, 198560), (16, 161330), (17, 151840), (20, 129064), (26, 99280), (32, 80665), (34, 75920), (40, 64532), (52, 49640), (65, 39712), (68, 37960), (73, 35360), (80, 32266), (85, 30368), (104, 24820), (130, 19856), (136, 18980), (146, 17680), (160, 16133), (170, 15184), (208, 12410), (221, 11680), (260, 9928), (272, 9490), (292, 8840), (340, 7592), (365, 7072), (416, 6205), (442, 5840), (520, 4964), (544, 4745), (584, 4420), (680, 3796), (730, 3536), (884, 2920), (949, 2720), (1040, 2482), (1105, 2336), (1168, 2210), (1241, 2080), (1360, 1898), (1460, 1768)]