31409920

素因数分解:

$2^8\times 5^1\times {\mathrm{53}}^1\times {\mathrm{463}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 76821696

約数和(自身を除く): 45411776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 265, 320, 424, 463, 530, 640, 848, 926, 1060, 1280, 1696, 1852, 2120, 2315, 3392, 3704, 4240, 4630, 6784, 7408, 8480, 9260, 13568, 14816, 16960, 18520, 24539, 29632, 33920, 37040, 49078, 59264, 67840, 74080, 98156, 118528, 122695, 148160, 196312, 245390, 296320, 392624, 490780, 592640, 785248, 981560, 1570496, 1963120, 3140992, 3926240, 6281984, 7852480, 15704960, 31409920]

約数ペア:

[(1, 31409920), (2, 15704960), (4, 7852480), (5, 6281984), (8, 3926240), (10, 3140992), (16, 1963120), (20, 1570496), (32, 981560), (40, 785248), (53, 592640), (64, 490780), (80, 392624), (106, 296320), (128, 245390), (160, 196312), (212, 148160), (256, 122695), (265, 118528), (320, 98156), (424, 74080), (463, 67840), (530, 59264), (640, 49078), (848, 37040), (926, 33920), (1060, 29632), (1280, 24539), (1696, 18520), (1852, 16960), (2120, 14816), (2315, 13568), (3392, 9260), (3704, 8480), (4240, 7408), (4630, 6784)]