40087736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 84369600

約数和(自身を除く): 44281864

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 71, 89, 104, 122, 142, 178, 244, 284, 356, 488, 568, 712, 793, 923, 1157, 1586, 1846, 2314, 3172, 3692, 4331, 4628, 5429, 6319, 6344, 7384, 8662, 9256, 10858, 12638, 17324, 21716, 25276, 34648, 43432, 50552, 56303, 70577, 82147, 112606, 141154, 164294, 225212, 282308, 328588, 385459, 450424, 564616, 657176, 770918, 1541836, 3083672, 5010967, 10021934, 20043868, 40087736]

約数ペア:

[(1, 40087736), (2, 20043868), (4, 10021934), (8, 5010967), (13, 3083672), (26, 1541836), (52, 770918), (61, 657176), (71, 564616), (89, 450424), (104, 385459), (122, 328588), (142, 282308), (178, 225212), (244, 164294), (284, 141154), (356, 112606), (488, 82147), (568, 70577), (712, 56303), (793, 50552), (923, 43432), (1157, 34648), (1586, 25276), (1846, 21716), (2314, 17324), (3172, 12638), (3692, 10858), (4331, 9256), (4628, 8662), (5429, 7384), (6319, 6344)]