18755660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:687

約数の個数: 96

約数和(自身を含む): 51770880

約数和(自身を除く): 33015220

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 133, 140, 154, 190, 209, 220, 266, 308, 380, 385, 418, 532, 641, 665, 770, 836, 1045, 1282, 1330, 1463, 1540, 2090, 2564, 2660, 2926, 3205, 4180, 4487, 5852, 6410, 7051, 7315, 8974, 12179, 12820, 14102, 14630, 17948, 22435, 24358, 28204, 29260, 35255, 44870, 48716, 49357, 60895, 70510, 85253, 89740, 98714, 121790, 133969, 141020, 170506, 197428, 243580, 246785, 267938, 341012, 426265, 493570, 535876, 669845, 852530, 937783, 987140, 1339690, 1705060, 1875566, 2679380, 3751132, 4688915, 9377830, 18755660]

約数ペア:

[(1, 18755660), (2, 9377830), (4, 4688915), (5, 3751132), (7, 2679380), (10, 1875566), (11, 1705060), (14, 1339690), (19, 987140), (20, 937783), (22, 852530), (28, 669845), (35, 535876), (38, 493570), (44, 426265), (55, 341012), (70, 267938), (76, 246785), (77, 243580), (95, 197428), (110, 170506), (133, 141020), (140, 133969), (154, 121790), (190, 98714), (209, 89740), (220, 85253), (266, 70510), (308, 60895), (380, 49357), (385, 48716), (418, 44870), (532, 35255), (641, 29260), (665, 28204), (770, 24358), (836, 22435), (1045, 17948), (1282, 14630), (1330, 14102), (1463, 12820), (1540, 12179), (2090, 8974), (2564, 7315), (2660, 7051), (2926, 6410), (3205, 5852), (4180, 4487)]