2890453640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1\times {\mathrm{4457}}^1$

素因数の和:5022

約数の個数: 64

約数和(自身を含む): 6727656960

約数和(自身を除く): 3837203320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 523, 620, 1046, 1240, 2092, 2615, 4184, 4457, 5230, 8914, 10460, 16213, 17828, 20920, 22285, 32426, 35656, 44570, 64852, 81065, 89140, 129704, 138167, 162130, 178280, 276334, 324260, 552668, 648520, 690835, 1105336, 1381670, 2331011, 2763340, 4662022, 5526680, 9324044, 11655055, 18648088, 23310110, 46620220, 72261341, 93240440, 144522682, 289045364, 361306705, 578090728, 722613410, 1445226820, 2890453640]

約数ペア:

[(1, 2890453640), (2, 1445226820), (4, 722613410), (5, 578090728), (8, 361306705), (10, 289045364), (20, 144522682), (31, 93240440), (40, 72261341), (62, 46620220), (124, 23310110), (155, 18648088), (248, 11655055), (310, 9324044), (523, 5526680), (620, 4662022), (1046, 2763340), (1240, 2331011), (2092, 1381670), (2615, 1105336), (4184, 690835), (4457, 648520), (5230, 552668), (8914, 324260), (10460, 276334), (16213, 178280), (17828, 162130), (20920, 138167), (22285, 129704), (32426, 89140), (35656, 81065), (44570, 64852)]