42790280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:175

約数の個数: 128

約数和(自身を含む): 112492800

約数和(自身を除く): 69702520

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 61, 65, 71, 76, 95, 104, 122, 130, 142, 152, 190, 244, 247, 260, 284, 305, 355, 380, 488, 494, 520, 568, 610, 710, 760, 793, 923, 988, 1159, 1220, 1235, 1349, 1420, 1586, 1846, 1976, 2318, 2440, 2470, 2698, 2840, 3172, 3692, 3965, 4331, 4615, 4636, 4940, 5396, 5795, 6344, 6745, 7384, 7930, 8662, 9230, 9272, 9880, 10792, 11590, 13490, 15067, 15860, 17324, 17537, 18460, 21655, 23180, 26980, 30134, 31720, 34648, 35074, 36920, 43310, 46360, 53960, 56303, 60268, 70148, 75335, 82289, 86620, 87685, 112606, 120536, 140296, 150670, 164578, 173240, 175370, 225212, 281515, 301340, 329156, 350740, 411445, 450424, 563030, 602680, 658312, 701480, 822890, 1069757, 1126060, 1645780, 2139514, 2252120, 3291560, 4279028, 5348785, 8558056, 10697570, 21395140, 42790280]

約数ペア:

[(1, 42790280), (2, 21395140), (4, 10697570), (5, 8558056), (8, 5348785), (10, 4279028), (13, 3291560), (19, 2252120), (20, 2139514), (26, 1645780), (38, 1126060), (40, 1069757), (52, 822890), (61, 701480), (65, 658312), (71, 602680), (76, 563030), (95, 450424), (104, 411445), (122, 350740), (130, 329156), (142, 301340), (152, 281515), (190, 225212), (244, 175370), (247, 173240), (260, 164578), (284, 150670), (305, 140296), (355, 120536), (380, 112606), (488, 87685), (494, 86620), (520, 82289), (568, 75335), (610, 70148), (710, 60268), (760, 56303), (793, 53960), (923, 46360), (988, 43310), (1159, 36920), (1220, 35074), (1235, 34648), (1349, 31720), (1420, 30134), (1586, 26980), (1846, 23180), (1976, 21655), (2318, 18460), (2440, 17537), (2470, 17324), (2698, 15860), (2840, 15067), (3172, 13490), (3692, 11590), (3965, 10792), (4331, 9880), (4615, 9272), (4636, 9230), (4940, 8662), (5396, 7930), (5795, 7384), (6344, 6745)]