209781040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{3709}}^1$

素因数の和:3830

約数の個数: 80

約数和(自身を含む): 563088960

約数和(自身を除く): 353307920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 101, 112, 140, 202, 280, 404, 505, 560, 707, 808, 1010, 1414, 1616, 2020, 2828, 3535, 3709, 4040, 5656, 7070, 7418, 8080, 11312, 14140, 14836, 18545, 25963, 28280, 29672, 37090, 51926, 56560, 59344, 74180, 103852, 129815, 148360, 207704, 259630, 296720, 374609, 415408, 519260, 749218, 1038520, 1498436, 1873045, 2077040, 2622263, 2996872, 3746090, 5244526, 5993744, 7492180, 10489052, 13111315, 14984360, 20978104, 26222630, 29968720, 41956208, 52445260, 104890520, 209781040]

約数ペア:

[(1, 209781040), (2, 104890520), (4, 52445260), (5, 41956208), (7, 29968720), (8, 26222630), (10, 20978104), (14, 14984360), (16, 13111315), (20, 10489052), (28, 7492180), (35, 5993744), (40, 5244526), (56, 3746090), (70, 2996872), (80, 2622263), (101, 2077040), (112, 1873045), (140, 1498436), (202, 1038520), (280, 749218), (404, 519260), (505, 415408), (560, 374609), (707, 296720), (808, 259630), (1010, 207704), (1414, 148360), (1616, 129815), (2020, 103852), (2828, 74180), (3535, 59344), (3709, 56560), (4040, 51926), (5656, 37090), (7070, 29672), (7418, 28280), (8080, 25963), (11312, 18545), (14140, 14836)]