7903720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:127

約数の個数: 96

約数和(自身を含む): 20684160

約数和(自身を除く): 12780440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 71, 88, 92, 110, 115, 121, 142, 184, 220, 230, 242, 253, 284, 355, 440, 460, 484, 506, 568, 605, 710, 781, 920, 968, 1012, 1210, 1265, 1420, 1562, 1633, 2024, 2420, 2530, 2783, 2840, 3124, 3266, 3905, 4840, 5060, 5566, 6248, 6532, 7810, 8165, 8591, 10120, 11132, 13064, 13915, 15620, 16330, 17182, 17963, 22264, 27830, 31240, 32660, 34364, 35926, 42955, 55660, 65320, 68728, 71852, 85910, 89815, 111320, 143704, 171820, 179630, 197593, 343640, 359260, 395186, 718520, 790372, 987965, 1580744, 1975930, 3951860, 7903720]

約数ペア:

[(1, 7903720), (2, 3951860), (4, 1975930), (5, 1580744), (8, 987965), (10, 790372), (11, 718520), (20, 395186), (22, 359260), (23, 343640), (40, 197593), (44, 179630), (46, 171820), (55, 143704), (71, 111320), (88, 89815), (92, 85910), (110, 71852), (115, 68728), (121, 65320), (142, 55660), (184, 42955), (220, 35926), (230, 34364), (242, 32660), (253, 31240), (284, 27830), (355, 22264), (440, 17963), (460, 17182), (484, 16330), (506, 15620), (568, 13915), (605, 13064), (710, 11132), (781, 10120), (920, 8591), (968, 8165), (1012, 7810), (1210, 6532), (1265, 6248), (1420, 5566), (1562, 5060), (1633, 4840), (2024, 3905), (2420, 3266), (2530, 3124), (2783, 2840)]