7992920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{809}}^1$

素因数の和:852

約数の個数: 64

約数和(自身を含む): 20412000

約数和(自身を除く): 12419080

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 809, 988, 1235, 1618, 1976, 2470, 3236, 4045, 4940, 6472, 8090, 9880, 10517, 15371, 16180, 21034, 30742, 32360, 42068, 52585, 61484, 76855, 84136, 105170, 122968, 153710, 199823, 210340, 307420, 399646, 420680, 614840, 799292, 999115, 1598584, 1998230, 3996460, 7992920]

約数ペア:

[(1, 7992920), (2, 3996460), (4, 1998230), (5, 1598584), (8, 999115), (10, 799292), (13, 614840), (19, 420680), (20, 399646), (26, 307420), (38, 210340), (40, 199823), (52, 153710), (65, 122968), (76, 105170), (95, 84136), (104, 76855), (130, 61484), (152, 52585), (190, 42068), (247, 32360), (260, 30742), (380, 21034), (494, 16180), (520, 15371), (760, 10517), (809, 9880), (988, 8090), (1235, 6472), (1618, 4940), (1976, 4045), (2470, 3236)]