198282980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{8689}}^1$

素因数の和:8868

約数の個数: 48

約数和(自身を含む): 478853760

約数和(自身を除く): 280570780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 163, 326, 652, 815, 1141, 1630, 2282, 3260, 4564, 5705, 8689, 11410, 17378, 22820, 34756, 43445, 60823, 86890, 121646, 173780, 243292, 304115, 608230, 1216460, 1416307, 2832614, 5665228, 7081535, 9914149, 14163070, 19828298, 28326140, 39656596, 49570745, 99141490, 198282980]

約数ペア:

[(1, 198282980), (2, 99141490), (4, 49570745), (5, 39656596), (7, 28326140), (10, 19828298), (14, 14163070), (20, 9914149), (28, 7081535), (35, 5665228), (70, 2832614), (140, 1416307), (163, 1216460), (326, 608230), (652, 304115), (815, 243292), (1141, 173780), (1630, 121646), (2282, 86890), (3260, 60823), (4564, 43445), (5705, 34756), (8689, 22820), (11410, 17378)]