4028440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 9999360

約数和(自身を除く): 5970920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 127, 130, 244, 254, 260, 305, 488, 508, 520, 610, 635, 793, 1016, 1220, 1270, 1586, 1651, 2440, 2540, 3172, 3302, 3965, 5080, 6344, 6604, 7747, 7930, 8255, 13208, 15494, 15860, 16510, 30988, 31720, 33020, 38735, 61976, 66040, 77470, 100711, 154940, 201422, 309880, 402844, 503555, 805688, 1007110, 2014220, 4028440]

約数ペア:

[(1, 4028440), (2, 2014220), (4, 1007110), (5, 805688), (8, 503555), (10, 402844), (13, 309880), (20, 201422), (26, 154940), (40, 100711), (52, 77470), (61, 66040), (65, 61976), (104, 38735), (122, 33020), (127, 31720), (130, 30988), (244, 16510), (254, 15860), (260, 15494), (305, 13208), (488, 8255), (508, 7930), (520, 7747), (610, 6604), (635, 6344), (793, 5080), (1016, 3965), (1220, 3302), (1270, 3172), (1586, 2540), (1651, 2440)]