28849730

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 65318400

約数和(自身を除く): 36468670

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 343, 455, 490, 637, 647, 686, 910, 1274, 1294, 1715, 3185, 3235, 3430, 4459, 4529, 6370, 6470, 8411, 8918, 9058, 16822, 22295, 22645, 31703, 42055, 44590, 45290, 58877, 63406, 84110, 117754, 158515, 221921, 294385, 317030, 412139, 443842, 588770, 824278, 1109605, 2060695, 2219210, 2884973, 4121390, 5769946, 14424865, 28849730]

約数ペア:

[(1, 28849730), (2, 14424865), (5, 5769946), (7, 4121390), (10, 2884973), (13, 2219210), (14, 2060695), (26, 1109605), (35, 824278), (49, 588770), (65, 443842), (70, 412139), (91, 317030), (98, 294385), (130, 221921), (182, 158515), (245, 117754), (343, 84110), (455, 63406), (490, 58877), (637, 45290), (647, 44590), (686, 42055), (910, 31703), (1274, 22645), (1294, 22295), (1715, 16822), (3185, 9058), (3235, 8918), (3430, 8411), (4459, 6470), (4529, 6370)]