2819156720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{5273}}^1$

素因数の和:5490

約数の個数: 80

約数和(自身を含む): 6756880032

約数和(自身を除く): 3937723312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 163, 164, 205, 326, 328, 410, 652, 656, 815, 820, 1304, 1630, 1640, 2608, 3260, 3280, 5273, 6520, 6683, 10546, 13040, 13366, 21092, 26365, 26732, 33415, 42184, 52730, 53464, 66830, 84368, 105460, 106928, 133660, 210920, 216193, 267320, 421840, 432386, 534640, 859499, 864772, 1080965, 1718998, 1729544, 2161930, 3437996, 3459088, 4297495, 4323860, 6875992, 8594990, 8647720, 13751984, 17189980, 17295440, 34379960, 35239459, 68759920, 70478918, 140957836, 176197295, 281915672, 352394590, 563831344, 704789180, 1409578360, 2819156720]

約数ペア:

[(1, 2819156720), (2, 1409578360), (4, 704789180), (5, 563831344), (8, 352394590), (10, 281915672), (16, 176197295), (20, 140957836), (40, 70478918), (41, 68759920), (80, 35239459), (82, 34379960), (163, 17295440), (164, 17189980), (205, 13751984), (326, 8647720), (328, 8594990), (410, 6875992), (652, 4323860), (656, 4297495), (815, 3459088), (820, 3437996), (1304, 2161930), (1630, 1729544), (1640, 1718998), (2608, 1080965), (3260, 864772), (3280, 859499), (5273, 534640), (6520, 432386), (6683, 421840), (10546, 267320), (13040, 216193), (13366, 210920), (21092, 133660), (26365, 106928), (26732, 105460), (33415, 84368), (42184, 66830), (52730, 53464)]