1854640

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:349

約数の個数: 40

約数和(自身を含む): 4374720

約数和(自身を除く): 2520080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 239, 388, 478, 485, 776, 956, 970, 1195, 1552, 1912, 1940, 2390, 3824, 3880, 4780, 7760, 9560, 19120, 23183, 46366, 92732, 115915, 185464, 231830, 370928, 463660, 927320, 1854640]

約数ペア:

[(1, 1854640), (2, 927320), (4, 463660), (5, 370928), (8, 231830), (10, 185464), (16, 115915), (20, 92732), (40, 46366), (80, 23183), (97, 19120), (194, 9560), (239, 7760), (388, 4780), (478, 3880), (485, 3824), (776, 2390), (956, 1940), (970, 1912), (1195, 1552)]