31091980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4813}}^1$

素因数の和:4858

約数の個数: 48

約数和(自身を含む): 72787680

約数和(自身を除く): 41695700

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 4813, 6460, 9626, 19252, 24065, 48130, 81821, 91447, 96260, 163642, 182894, 327284, 365788, 409105, 457235, 818210, 914470, 1554599, 1636420, 1828940, 3109198, 6218396, 7772995, 15545990, 31091980]

約数ペア:

[(1, 31091980), (2, 15545990), (4, 7772995), (5, 6218396), (10, 3109198), (17, 1828940), (19, 1636420), (20, 1554599), (34, 914470), (38, 818210), (68, 457235), (76, 409105), (85, 365788), (95, 327284), (170, 182894), (190, 163642), (323, 96260), (340, 91447), (380, 81821), (646, 48130), (1292, 24065), (1615, 19252), (3230, 9626), (4813, 6460)]