1651840

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:137

約数の個数: 64

約数和(自身を含む): 4131000

約数和(自身を除く): 2479160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 89, 116, 128, 145, 160, 178, 232, 290, 320, 356, 445, 464, 580, 640, 712, 890, 928, 1160, 1424, 1780, 1856, 2320, 2581, 2848, 3560, 3712, 4640, 5162, 5696, 7120, 9280, 10324, 11392, 12905, 14240, 18560, 20648, 25810, 28480, 41296, 51620, 56960, 82592, 103240, 165184, 206480, 330368, 412960, 825920, 1651840]

約数ペア:

[(1, 1651840), (2, 825920), (4, 412960), (5, 330368), (8, 206480), (10, 165184), (16, 103240), (20, 82592), (29, 56960), (32, 51620), (40, 41296), (58, 28480), (64, 25810), (80, 20648), (89, 18560), (116, 14240), (128, 12905), (145, 11392), (160, 10324), (178, 9280), (232, 7120), (290, 5696), (320, 5162), (356, 4640), (445, 3712), (464, 3560), (580, 2848), (640, 2581), (712, 2320), (890, 1856), (928, 1780), (1160, 1424)]