18391960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:125

約数の個数: 96

約数和(自身を含む): 46197360

約数和(自身を除く): 27805400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 43, 68, 74, 85, 86, 136, 148, 170, 172, 185, 215, 289, 296, 340, 344, 370, 430, 578, 629, 680, 731, 740, 860, 1156, 1258, 1445, 1462, 1480, 1591, 1720, 2312, 2516, 2890, 2924, 3145, 3182, 3655, 5032, 5780, 5848, 6290, 6364, 7310, 7955, 10693, 11560, 12427, 12580, 12728, 14620, 15910, 21386, 24854, 25160, 27047, 29240, 31820, 42772, 49708, 53465, 54094, 62135, 63640, 85544, 99416, 106930, 108188, 124270, 135235, 213860, 216376, 248540, 270470, 427720, 459799, 497080, 540940, 919598, 1081880, 1839196, 2298995, 3678392, 4597990, 9195980, 18391960]

約数ペア:

[(1, 18391960), (2, 9195980), (4, 4597990), (5, 3678392), (8, 2298995), (10, 1839196), (17, 1081880), (20, 919598), (34, 540940), (37, 497080), (40, 459799), (43, 427720), (68, 270470), (74, 248540), (85, 216376), (86, 213860), (136, 135235), (148, 124270), (170, 108188), (172, 106930), (185, 99416), (215, 85544), (289, 63640), (296, 62135), (340, 54094), (344, 53465), (370, 49708), (430, 42772), (578, 31820), (629, 29240), (680, 27047), (731, 25160), (740, 24854), (860, 21386), (1156, 15910), (1258, 14620), (1445, 12728), (1462, 12580), (1480, 12427), (1591, 11560), (1720, 10693), (2312, 7955), (2516, 7310), (2890, 6364), (2924, 6290), (3145, 5848), (3182, 5780), (3655, 5032)]