2218211525

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{383}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 2956953600

約数和(自身を除く): 738742075

約数列:

[1, 5, 19, 25, 89, 95, 137, 383, 445, 475, 685, 1691, 1915, 2225, 2603, 3425, 7277, 8455, 9575, 12193, 13015, 34087, 36385, 42275, 52471, 60965, 65075, 170435, 181925, 231667, 262355, 304825, 647653, 852175, 996949, 1158335, 1311775, 3238265, 4669919, 4984745, 5791675, 16191325, 23349595, 24923725, 88728461, 116747975, 443642305, 2218211525]

約数ペア:

[(1, 2218211525), (5, 443642305), (19, 116747975), (25, 88728461), (89, 24923725), (95, 23349595), (137, 16191325), (383, 5791675), (445, 4984745), (475, 4669919), (685, 3238265), (1691, 1311775), (1915, 1158335), (2225, 996949), (2603, 852175), (3425, 647653), (7277, 304825), (8455, 262355), (9575, 231667), (12193, 181925), (13015, 170435), (34087, 65075), (36385, 60965), (42275, 52471)]