40887080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1289}}^1$

素因数の和:1374

約数の個数: 64

約数和(自身を含む): 100774800

約数和(自身を除く): 59887720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 1220, 1289, 1586, 2440, 2578, 3172, 3965, 5156, 6344, 6445, 7930, 10312, 12890, 15860, 16757, 25780, 31720, 33514, 51560, 67028, 78629, 83785, 134056, 157258, 167570, 314516, 335140, 393145, 629032, 670280, 786290, 1022177, 1572580, 2044354, 3145160, 4088708, 5110885, 8177416, 10221770, 20443540, 40887080]

約数ペア:

[(1, 40887080), (2, 20443540), (4, 10221770), (5, 8177416), (8, 5110885), (10, 4088708), (13, 3145160), (20, 2044354), (26, 1572580), (40, 1022177), (52, 786290), (61, 670280), (65, 629032), (104, 393145), (122, 335140), (130, 314516), (244, 167570), (260, 157258), (305, 134056), (488, 83785), (520, 78629), (610, 67028), (793, 51560), (1220, 33514), (1289, 31720), (1586, 25780), (2440, 16757), (2578, 15860), (3172, 12890), (3965, 10312), (5156, 7930), (6344, 6445)]