81228240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1117}}^1$

素因数の和:1237

約数の個数: 120

約数和(自身を含む): 275739048

約数和(自身を除く): 194510808

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 101, 120, 144, 180, 202, 240, 303, 360, 404, 505, 606, 720, 808, 909, 1010, 1117, 1212, 1515, 1616, 1818, 2020, 2234, 2424, 3030, 3351, 3636, 4040, 4468, 4545, 4848, 5585, 6060, 6702, 7272, 8080, 8936, 9090, 10053, 11170, 12120, 13404, 14544, 16755, 17872, 18180, 20106, 22340, 24240, 26808, 33510, 36360, 40212, 44680, 50265, 53616, 67020, 72720, 80424, 89360, 100530, 112817, 134040, 160848, 201060, 225634, 268080, 338451, 402120, 451268, 564085, 676902, 804240, 902536, 1015353, 1128170, 1353804, 1692255, 1805072, 2030706, 2256340, 2707608, 3384510, 4061412, 4512680, 5076765, 5415216, 6769020, 8122824, 9025360, 10153530, 13538040, 16245648, 20307060, 27076080, 40614120, 81228240]

約数ペア:

[(1, 81228240), (2, 40614120), (3, 27076080), (4, 20307060), (5, 16245648), (6, 13538040), (8, 10153530), (9, 9025360), (10, 8122824), (12, 6769020), (15, 5415216), (16, 5076765), (18, 4512680), (20, 4061412), (24, 3384510), (30, 2707608), (36, 2256340), (40, 2030706), (45, 1805072), (48, 1692255), (60, 1353804), (72, 1128170), (80, 1015353), (90, 902536), (101, 804240), (120, 676902), (144, 564085), (180, 451268), (202, 402120), (240, 338451), (303, 268080), (360, 225634), (404, 201060), (505, 160848), (606, 134040), (720, 112817), (808, 100530), (909, 89360), (1010, 80424), (1117, 72720), (1212, 67020), (1515, 53616), (1616, 50265), (1818, 44680), (2020, 40212), (2234, 36360), (2424, 33510), (3030, 26808), (3351, 24240), (3636, 22340), (4040, 20106), (4468, 18180), (4545, 17872), (4848, 16755), (5585, 14544), (6060, 13404), (6702, 12120), (7272, 11170), (8080, 10053), (8936, 9090)]