64264720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1013}}^1$

素因数の和:1100

約数の個数: 80

約数和(自身を含む): 163708272

約数和(自身を除く): 99443552

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 208, 244, 260, 305, 488, 520, 610, 793, 976, 1013, 1040, 1220, 1586, 2026, 2440, 3172, 3965, 4052, 4880, 5065, 6344, 7930, 8104, 10130, 12688, 13169, 15860, 16208, 20260, 26338, 31720, 40520, 52676, 61793, 63440, 65845, 81040, 105352, 123586, 131690, 210704, 247172, 263380, 308965, 494344, 526760, 617930, 803309, 988688, 1053520, 1235860, 1606618, 2471720, 3213236, 4016545, 4943440, 6426472, 8033090, 12852944, 16066180, 32132360, 64264720]

約数ペア:

[(1, 64264720), (2, 32132360), (4, 16066180), (5, 12852944), (8, 8033090), (10, 6426472), (13, 4943440), (16, 4016545), (20, 3213236), (26, 2471720), (40, 1606618), (52, 1235860), (61, 1053520), (65, 988688), (80, 803309), (104, 617930), (122, 526760), (130, 494344), (208, 308965), (244, 263380), (260, 247172), (305, 210704), (488, 131690), (520, 123586), (610, 105352), (793, 81040), (976, 65845), (1013, 63440), (1040, 61793), (1220, 52676), (1586, 40520), (2026, 31720), (2440, 26338), (3172, 20260), (3965, 16208), (4052, 15860), (4880, 13169), (5065, 12688), (6344, 10130), (7930, 8104)]