388455

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:103

約数の個数: 32

約数和(自身を含む): 691200

約数和(自身を除く): 302745

約数列:

[1, 3, 5, 15, 19, 29, 47, 57, 87, 95, 141, 145, 235, 285, 435, 551, 705, 893, 1363, 1653, 2679, 2755, 4089, 4465, 6815, 8265, 13395, 20445, 25897, 77691, 129485, 388455]

約数ペア:

[(1, 388455), (3, 129485), (5, 77691), (15, 25897), (19, 20445), (29, 13395), (47, 8265), (57, 6815), (87, 4465), (95, 4089), (141, 2755), (145, 2679), (235, 1653), (285, 1363), (435, 893), (551, 705)]