18065320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{709}}^1$

素因数の和:747

約数の個数: 96

約数和(自身を含む): 50992200

約数和(自身を除く): 32926880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 709, 728, 910, 980, 1274, 1418, 1820, 1960, 2548, 2836, 3185, 3545, 3640, 4963, 5096, 5672, 6370, 7090, 9217, 9926, 12740, 14180, 18434, 19852, 24815, 25480, 28360, 34741, 36868, 39704, 46085, 49630, 64519, 69482, 73736, 92170, 99260, 129038, 138964, 173705, 184340, 198520, 258076, 277928, 322595, 347410, 368680, 451633, 516152, 645190, 694820, 903266, 1290380, 1389640, 1806532, 2258165, 2580760, 3613064, 4516330, 9032660, 18065320]

約数ペア:

[(1, 18065320), (2, 9032660), (4, 4516330), (5, 3613064), (7, 2580760), (8, 2258165), (10, 1806532), (13, 1389640), (14, 1290380), (20, 903266), (26, 694820), (28, 645190), (35, 516152), (40, 451633), (49, 368680), (52, 347410), (56, 322595), (65, 277928), (70, 258076), (91, 198520), (98, 184340), (104, 173705), (130, 138964), (140, 129038), (182, 99260), (196, 92170), (245, 73736), (260, 69482), (280, 64519), (364, 49630), (392, 46085), (455, 39704), (490, 36868), (520, 34741), (637, 28360), (709, 25480), (728, 24815), (910, 19852), (980, 18434), (1274, 14180), (1418, 12740), (1820, 9926), (1960, 9217), (2548, 7090), (2836, 6370), (3185, 5672), (3545, 5096), (3640, 4963)]