20545508788

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1\times {\mathrm{38239}}^1$

素因数の和:38900

約数の個数: 48

約数和(自身を含む): 42486169600

約数和(自身を除く): 21940660812

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 619, 868, 1238, 2476, 4333, 8666, 17332, 19189, 38239, 38378, 76478, 76756, 134323, 152956, 267673, 268646, 535346, 537292, 1070692, 1185409, 2370818, 4741636, 8297863, 16595726, 23669941, 33191452, 47339882, 94679764, 165689587, 331379174, 662758348, 733768171, 1467536342, 2935072684, 5136377197, 10272754394, 20545508788]

約数ペア:

[(1, 20545508788), (2, 10272754394), (4, 5136377197), (7, 2935072684), (14, 1467536342), (28, 733768171), (31, 662758348), (62, 331379174), (124, 165689587), (217, 94679764), (434, 47339882), (619, 33191452), (868, 23669941), (1238, 16595726), (2476, 8297863), (4333, 4741636), (8666, 2370818), (17332, 1185409), (19189, 1070692), (38239, 537292), (38378, 535346), (76478, 268646), (76756, 267673), (134323, 152956)]