2870420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 7325640

約数和(自身を除く): 4455220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 101, 116, 140, 145, 196, 202, 203, 245, 290, 404, 406, 490, 505, 580, 707, 812, 980, 1010, 1015, 1414, 1421, 2020, 2030, 2828, 2842, 2929, 3535, 4060, 4949, 5684, 5858, 7070, 7105, 9898, 11716, 14140, 14210, 14645, 19796, 20503, 24745, 28420, 29290, 41006, 49490, 58580, 82012, 98980, 102515, 143521, 205030, 287042, 410060, 574084, 717605, 1435210, 2870420]

約数ペア:

[(1, 2870420), (2, 1435210), (4, 717605), (5, 574084), (7, 410060), (10, 287042), (14, 205030), (20, 143521), (28, 102515), (29, 98980), (35, 82012), (49, 58580), (58, 49490), (70, 41006), (98, 29290), (101, 28420), (116, 24745), (140, 20503), (145, 19796), (196, 14645), (202, 14210), (203, 14140), (245, 11716), (290, 9898), (404, 7105), (406, 7070), (490, 5858), (505, 5684), (580, 4949), (707, 4060), (812, 3535), (980, 2929), (1010, 2842), (1015, 2828), (1414, 2030), (1421, 2020)]