12398450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:483

約数の個数: 48

約数和(自身を含む): 25117440

約数和(自身を除く): 12718990

約数列:

[1, 2, 5, 10, 19, 25, 31, 38, 50, 62, 95, 155, 190, 310, 421, 475, 589, 775, 842, 950, 1178, 1550, 2105, 2945, 4210, 5890, 7999, 10525, 13051, 14725, 15998, 21050, 26102, 29450, 39995, 65255, 79990, 130510, 199975, 247969, 326275, 399950, 495938, 652550, 1239845, 2479690, 6199225, 12398450]

約数ペア:

[(1, 12398450), (2, 6199225), (5, 2479690), (10, 1239845), (19, 652550), (25, 495938), (31, 399950), (38, 326275), (50, 247969), (62, 199975), (95, 130510), (155, 79990), (190, 65255), (310, 39995), (421, 29450), (475, 26102), (589, 21050), (775, 15998), (842, 14725), (950, 13051), (1178, 10525), (1550, 7999), (2105, 5890), (2945, 4210)]