7285840

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1493}}^1$

素因数の和:1567

約数の個数: 40

約数和(自身を含む): 17228808

約数和(自身を除く): 9942968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 1493, 2440, 2986, 4880, 5972, 7465, 11944, 14930, 23888, 29860, 59720, 91073, 119440, 182146, 364292, 455365, 728584, 910730, 1457168, 1821460, 3642920, 7285840]

約数ペア:

[(1, 7285840), (2, 3642920), (4, 1821460), (5, 1457168), (8, 910730), (10, 728584), (16, 455365), (20, 364292), (40, 182146), (61, 119440), (80, 91073), (122, 59720), (244, 29860), (305, 23888), (488, 14930), (610, 11944), (976, 7465), (1220, 5972), (1493, 4880), (2440, 2986)]