217267840

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:330

約数の個数: 128

約数和(自身を含む): 549918720

約数和(自身を除く): 332650880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 47, 62, 64, 80, 94, 124, 128, 155, 160, 188, 233, 235, 248, 310, 320, 376, 466, 470, 496, 620, 640, 752, 932, 940, 992, 1165, 1240, 1457, 1504, 1864, 1880, 1984, 2330, 2480, 2914, 3008, 3728, 3760, 3968, 4660, 4960, 5828, 6016, 7223, 7285, 7456, 7520, 9320, 9920, 10951, 11656, 14446, 14570, 14912, 15040, 18640, 19840, 21902, 23312, 28892, 29140, 29824, 30080, 36115, 37280, 43804, 46624, 54755, 57784, 58280, 72230, 74560, 87608, 93248, 109510, 115568, 116560, 144460, 149120, 175216, 186496, 219020, 231136, 233120, 288920, 339481, 350432, 438040, 462272, 466240, 577840, 678962, 700864, 876080, 924544, 932480, 1155680, 1357924, 1401728, 1697405, 1752160, 2311360, 2715848, 3394810, 3504320, 4622720, 5431696, 6789620, 7008640, 10863392, 13579240, 21726784, 27158480, 43453568, 54316960, 108633920, 217267840]

約数ペア:

[(1, 217267840), (2, 108633920), (4, 54316960), (5, 43453568), (8, 27158480), (10, 21726784), (16, 13579240), (20, 10863392), (31, 7008640), (32, 6789620), (40, 5431696), (47, 4622720), (62, 3504320), (64, 3394810), (80, 2715848), (94, 2311360), (124, 1752160), (128, 1697405), (155, 1401728), (160, 1357924), (188, 1155680), (233, 932480), (235, 924544), (248, 876080), (310, 700864), (320, 678962), (376, 577840), (466, 466240), (470, 462272), (496, 438040), (620, 350432), (640, 339481), (752, 288920), (932, 233120), (940, 231136), (992, 219020), (1165, 186496), (1240, 175216), (1457, 149120), (1504, 144460), (1864, 116560), (1880, 115568), (1984, 109510), (2330, 93248), (2480, 87608), (2914, 74560), (3008, 72230), (3728, 58280), (3760, 57784), (3968, 54755), (4660, 46624), (4960, 43804), (5828, 37280), (6016, 36115), (7223, 30080), (7285, 29824), (7456, 29140), (7520, 28892), (9320, 23312), (9920, 21902), (10951, 19840), (11656, 18640), (14446, 15040), (14570, 14912)]