209430320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{719}}^1$

素因数の和:1074

約数の個数: 80

約数和(自身を含む): 533537280

約数和(自身を除く): 324106960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 331, 440, 662, 719, 880, 1324, 1438, 1655, 2648, 2876, 3310, 3595, 3641, 5296, 5752, 6620, 7190, 7282, 7909, 11504, 13240, 14380, 14564, 15818, 18205, 26480, 28760, 29128, 31636, 36410, 39545, 57520, 58256, 63272, 72820, 79090, 126544, 145640, 158180, 237989, 291280, 316360, 475978, 632720, 951956, 1189945, 1903912, 2379890, 2617879, 3807824, 4759780, 5235758, 9519560, 10471516, 13089395, 19039120, 20943032, 26178790, 41886064, 52357580, 104715160, 209430320]

約数ペア:

[(1, 209430320), (2, 104715160), (4, 52357580), (5, 41886064), (8, 26178790), (10, 20943032), (11, 19039120), (16, 13089395), (20, 10471516), (22, 9519560), (40, 5235758), (44, 4759780), (55, 3807824), (80, 2617879), (88, 2379890), (110, 1903912), (176, 1189945), (220, 951956), (331, 632720), (440, 475978), (662, 316360), (719, 291280), (880, 237989), (1324, 158180), (1438, 145640), (1655, 126544), (2648, 79090), (2876, 72820), (3310, 63272), (3595, 58256), (3641, 57520), (5296, 39545), (5752, 36410), (6620, 31636), (7190, 29128), (7282, 28760), (7909, 26480), (11504, 18205), (13240, 15818), (14380, 14564)]