2451950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:149

約数の個数: 48

約数和(自身を含む): 5022000

約数和(自身を除く): 2570050

約数列:

[1, 2, 5, 10, 19, 25, 29, 38, 50, 58, 89, 95, 145, 178, 190, 290, 445, 475, 551, 725, 890, 950, 1102, 1450, 1691, 2225, 2581, 2755, 3382, 4450, 5162, 5510, 8455, 12905, 13775, 16910, 25810, 27550, 42275, 49039, 64525, 84550, 98078, 129050, 245195, 490390, 1225975, 2451950]

約数ペア:

[(1, 2451950), (2, 1225975), (5, 490390), (10, 245195), (19, 129050), (25, 98078), (29, 84550), (38, 64525), (50, 49039), (58, 42275), (89, 27550), (95, 25810), (145, 16910), (178, 13775), (190, 12905), (290, 8455), (445, 5510), (475, 5162), (551, 4450), (725, 3382), (890, 2755), (950, 2581), (1102, 2225), (1450, 1691)]