20153680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13259}}^1$

素因数の和:13291

約数の個数: 40

約数和(自身を含む): 49327200

約数和(自身を除く): 29173520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13259, 26518, 53036, 66295, 106072, 132590, 212144, 251921, 265180, 503842, 530360, 1007684, 1060720, 1259605, 2015368, 2519210, 4030736, 5038420, 10076840, 20153680]

約数ペア:

[(1, 20153680), (2, 10076840), (4, 5038420), (5, 4030736), (8, 2519210), (10, 2015368), (16, 1259605), (19, 1060720), (20, 1007684), (38, 530360), (40, 503842), (76, 265180), (80, 251921), (95, 212144), (152, 132590), (190, 106072), (304, 66295), (380, 53036), (760, 26518), (1520, 13259)]