290049400

素因数分解:

$2^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{14951}}^1$

素因数の和:15064

約数の個数: 48

約数和(自身を含む): 681362640

約数和(自身を除く): 391313240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 194, 200, 388, 485, 776, 970, 1940, 2425, 3880, 4850, 9700, 14951, 19400, 29902, 59804, 74755, 119608, 149510, 299020, 373775, 598040, 747550, 1450247, 1495100, 2900494, 2990200, 5800988, 7251235, 11601976, 14502470, 29004940, 36256175, 58009880, 72512350, 145024700, 290049400]

約数ペア:

[(1, 290049400), (2, 145024700), (4, 72512350), (5, 58009880), (8, 36256175), (10, 29004940), (20, 14502470), (25, 11601976), (40, 7251235), (50, 5800988), (97, 2990200), (100, 2900494), (194, 1495100), (200, 1450247), (388, 747550), (485, 598040), (776, 373775), (970, 299020), (1940, 149510), (2425, 119608), (3880, 74755), (4850, 59804), (9700, 29902), (14951, 19400)]