20645704

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3671}}^1$

素因数の和:3733

約数の個数: 32

約数和(自身を含む): 41860800

約数和(自身を除く): 21215096

約数列:

[1, 2, 4, 8, 19, 37, 38, 74, 76, 148, 152, 296, 703, 1406, 2812, 3671, 5624, 7342, 14684, 29368, 69749, 135827, 139498, 271654, 278996, 543308, 557992, 1086616, 2580713, 5161426, 10322852, 20645704]

約数ペア:

[(1, 20645704), (2, 10322852), (4, 5161426), (8, 2580713), (19, 1086616), (37, 557992), (38, 543308), (74, 278996), (76, 271654), (148, 139498), (152, 135827), (296, 69749), (703, 29368), (1406, 14684), (2812, 7342), (3671, 5624)]