159690920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1447}}^1$

素因数の和:1578

約数の個数: 64

約数和(自身を含む): 375321600

約数和(自身を除く): 215630680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 89, 124, 155, 178, 248, 310, 356, 445, 620, 712, 890, 1240, 1447, 1780, 2759, 2894, 3560, 5518, 5788, 7235, 11036, 11576, 13795, 14470, 22072, 27590, 28940, 44857, 55180, 57880, 89714, 110360, 128783, 179428, 224285, 257566, 358856, 448570, 515132, 643915, 897140, 1030264, 1287830, 1794280, 2575660, 3992273, 5151320, 7984546, 15969092, 19961365, 31938184, 39922730, 79845460, 159690920]

約数ペア:

[(1, 159690920), (2, 79845460), (4, 39922730), (5, 31938184), (8, 19961365), (10, 15969092), (20, 7984546), (31, 5151320), (40, 3992273), (62, 2575660), (89, 1794280), (124, 1287830), (155, 1030264), (178, 897140), (248, 643915), (310, 515132), (356, 448570), (445, 358856), (620, 257566), (712, 224285), (890, 179428), (1240, 128783), (1447, 110360), (1780, 89714), (2759, 57880), (2894, 55180), (3560, 44857), (5518, 28940), (5788, 27590), (7235, 22072), (11036, 14470), (11576, 13795)]