1238640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:426

約数の個数: 80

約数和(自身を含む): 4145568

約数和(自身を除く): 2906928

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 397, 520, 624, 780, 794, 1040, 1191, 1560, 1588, 1985, 2382, 3120, 3176, 3970, 4764, 5161, 5955, 6352, 7940, 9528, 10322, 11910, 15483, 15880, 19056, 20644, 23820, 25805, 30966, 31760, 41288, 47640, 51610, 61932, 77415, 82576, 95280, 103220, 123864, 154830, 206440, 247728, 309660, 412880, 619320, 1238640]

約数ペア:

[(1, 1238640), (2, 619320), (3, 412880), (4, 309660), (5, 247728), (6, 206440), (8, 154830), (10, 123864), (12, 103220), (13, 95280), (15, 82576), (16, 77415), (20, 61932), (24, 51610), (26, 47640), (30, 41288), (39, 31760), (40, 30966), (48, 25805), (52, 23820), (60, 20644), (65, 19056), (78, 15880), (80, 15483), (104, 11910), (120, 10322), (130, 9528), (156, 7940), (195, 6352), (208, 5955), (240, 5161), (260, 4764), (312, 3970), (390, 3176), (397, 3120), (520, 2382), (624, 1985), (780, 1588), (794, 1560), (1040, 1191)]