253118720

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6379}}^1$

素因数の和:6431

約数の個数: 72

約数和(自身を含む): 625954560

約数和(自身を除く): 372835840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 6379, 7936, 9920, 12758, 19840, 25516, 31895, 39680, 51032, 63790, 102064, 127580, 197749, 204128, 255160, 395498, 408256, 510320, 790996, 816512, 988745, 1020640, 1581992, 1633024, 1977490, 2041280, 3163984, 3954980, 4082560, 6327968, 7909960, 8165120, 12655936, 15819920, 25311872, 31639840, 50623744, 63279680, 126559360, 253118720]

約数ペア:

[(1, 253118720), (2, 126559360), (4, 63279680), (5, 50623744), (8, 31639840), (10, 25311872), (16, 15819920), (20, 12655936), (31, 8165120), (32, 7909960), (40, 6327968), (62, 4082560), (64, 3954980), (80, 3163984), (124, 2041280), (128, 1977490), (155, 1633024), (160, 1581992), (248, 1020640), (256, 988745), (310, 816512), (320, 790996), (496, 510320), (620, 408256), (640, 395498), (992, 255160), (1240, 204128), (1280, 197749), (1984, 127580), (2480, 102064), (3968, 63790), (4960, 51032), (6379, 39680), (7936, 31895), (9920, 25516), (12758, 19840)]