68240380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{15439}}^1$

素因数の和:15478

約数の個数: 48

約数和(自身を含む): 163416960

約数和(自身を除く): 95176580

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 15439, 30878, 61756, 77195, 154390, 200707, 262463, 308780, 401414, 524926, 802828, 1003535, 1049852, 1312315, 2007070, 2624630, 3412019, 4014140, 5249260, 6824038, 13648076, 17060095, 34120190, 68240380]

約数ペア:

[(1, 68240380), (2, 34120190), (4, 17060095), (5, 13648076), (10, 6824038), (13, 5249260), (17, 4014140), (20, 3412019), (26, 2624630), (34, 2007070), (52, 1312315), (65, 1049852), (68, 1003535), (85, 802828), (130, 524926), (170, 401414), (221, 308780), (260, 262463), (340, 200707), (442, 154390), (884, 77195), (1105, 61756), (2210, 30878), (4420, 15439)]