2601040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 80

約数和(自身を含む): 6780816

約数和(自身を除く): 4179776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 61, 65, 80, 82, 104, 122, 130, 164, 205, 208, 244, 260, 305, 328, 410, 488, 520, 533, 610, 656, 793, 820, 976, 1040, 1066, 1220, 1586, 1640, 2132, 2440, 2501, 2665, 3172, 3280, 3965, 4264, 4880, 5002, 5330, 6344, 7930, 8528, 10004, 10660, 12505, 12688, 15860, 20008, 21320, 25010, 31720, 32513, 40016, 42640, 50020, 63440, 65026, 100040, 130052, 162565, 200080, 260104, 325130, 520208, 650260, 1300520, 2601040]

約数ペア:

[(1, 2601040), (2, 1300520), (4, 650260), (5, 520208), (8, 325130), (10, 260104), (13, 200080), (16, 162565), (20, 130052), (26, 100040), (40, 65026), (41, 63440), (52, 50020), (61, 42640), (65, 40016), (80, 32513), (82, 31720), (104, 25010), (122, 21320), (130, 20008), (164, 15860), (205, 12688), (208, 12505), (244, 10660), (260, 10004), (305, 8528), (328, 7930), (410, 6344), (488, 5330), (520, 5002), (533, 4880), (610, 4264), (656, 3965), (793, 3280), (820, 3172), (976, 2665), (1040, 2501), (1066, 2440), (1220, 2132), (1586, 1640)]