81905100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{8807}}^1$

素因数の和:8855

約数の個数: 72

約数和(自身を含む): 244651008

約数和(自身を除く): 162745908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 31, 50, 60, 62, 75, 93, 100, 124, 150, 155, 186, 300, 310, 372, 465, 620, 775, 930, 1550, 1860, 2325, 3100, 4650, 8807, 9300, 17614, 26421, 35228, 44035, 52842, 88070, 105684, 132105, 176140, 220175, 264210, 273017, 440350, 528420, 546034, 660525, 819051, 880700, 1092068, 1321050, 1365085, 1638102, 2642100, 2730170, 3276204, 4095255, 5460340, 6825425, 8190510, 13650850, 16381020, 20476275, 27301700, 40952550, 81905100]

約数ペア:

[(1, 81905100), (2, 40952550), (3, 27301700), (4, 20476275), (5, 16381020), (6, 13650850), (10, 8190510), (12, 6825425), (15, 5460340), (20, 4095255), (25, 3276204), (30, 2730170), (31, 2642100), (50, 1638102), (60, 1365085), (62, 1321050), (75, 1092068), (93, 880700), (100, 819051), (124, 660525), (150, 546034), (155, 528420), (186, 440350), (300, 273017), (310, 264210), (372, 220175), (465, 176140), (620, 132105), (775, 105684), (930, 88070), (1550, 52842), (1860, 44035), (2325, 35228), (3100, 26421), (4650, 17614), (8807, 9300)]