90797140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20921}}^1$

素因数の和:20968

約数の個数: 48

約数和(自身を含む): 224953344

約数和(自身を除く): 134156204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 20921, 41842, 83684, 104605, 146447, 209210, 292894, 418420, 585788, 648551, 732235, 1297102, 1464470, 2594204, 2928940, 3242755, 4539857, 6485510, 9079714, 12971020, 18159428, 22699285, 45398570, 90797140]

約数ペア:

[(1, 90797140), (2, 45398570), (4, 22699285), (5, 18159428), (7, 12971020), (10, 9079714), (14, 6485510), (20, 4539857), (28, 3242755), (31, 2928940), (35, 2594204), (62, 1464470), (70, 1297102), (124, 732235), (140, 648551), (155, 585788), (217, 418420), (310, 292894), (434, 209210), (620, 146447), (868, 104605), (1085, 83684), (2170, 41842), (4340, 20921)]