199907955

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4813}}^1$

素因数の和:4908

約数の個数: 48

約数和(自身を含む): 378495936

約数和(自身を除く): 178587981

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 71, 117, 195, 213, 355, 585, 639, 923, 1065, 2769, 3195, 4615, 4813, 8307, 13845, 14439, 24065, 41535, 43317, 62569, 72195, 187707, 216585, 312845, 341723, 563121, 938535, 1025169, 1708615, 2815605, 3075507, 4442399, 5125845, 13327197, 15377535, 22211995, 39981591, 66635985, 199907955]

約数ペア:

[(1, 199907955), (3, 66635985), (5, 39981591), (9, 22211995), (13, 15377535), (15, 13327197), (39, 5125845), (45, 4442399), (65, 3075507), (71, 2815605), (117, 1708615), (195, 1025169), (213, 938535), (355, 563121), (585, 341723), (639, 312845), (923, 216585), (1065, 187707), (2769, 72195), (3195, 62569), (4615, 43317), (4813, 41535), (8307, 24065), (13845, 14439)]