27990830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12899}}^1$

素因数の和:12944

約数の個数: 32

約数和(自身を含む): 59443200

約数和(自身を除く): 31452370

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 12899, 25798, 64495, 90293, 128990, 180586, 399869, 451465, 799738, 902930, 1999345, 2799083, 3998690, 5598166, 13995415, 27990830]

約数ペア:

[(1, 27990830), (2, 13995415), (5, 5598166), (7, 3998690), (10, 2799083), (14, 1999345), (31, 902930), (35, 799738), (62, 451465), (70, 399869), (155, 180586), (217, 128990), (310, 90293), (434, 64495), (1085, 25798), (2170, 12899)]