25419760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18691}}^1$

素因数の和:18721

約数の個数: 40

約数和(自身を含む): 62580816

約数和(自身を除く): 37161056

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 18691, 37382, 74764, 93455, 149528, 186910, 299056, 317747, 373820, 635494, 747640, 1270988, 1495280, 1588735, 2541976, 3177470, 5083952, 6354940, 12709880, 25419760]

約数ペア:

[(1, 25419760), (2, 12709880), (4, 6354940), (5, 5083952), (8, 3177470), (10, 2541976), (16, 1588735), (17, 1495280), (20, 1270988), (34, 747640), (40, 635494), (68, 373820), (80, 317747), (85, 299056), (136, 186910), (170, 149528), (272, 93455), (340, 74764), (680, 37382), (1360, 18691)]