81512910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31231}}^1$

素因数の和:31273

約数の個数: 48

約数和(自身を含む): 219248640

約数和(自身を除く): 137735730

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 290, 435, 522, 870, 1305, 2610, 31231, 62462, 93693, 156155, 187386, 281079, 312310, 468465, 562158, 905699, 936930, 1405395, 1811398, 2717097, 2810790, 4528495, 5434194, 8151291, 9056990, 13585485, 16302582, 27170970, 40756455, 81512910]

約数ペア:

[(1, 81512910), (2, 40756455), (3, 27170970), (5, 16302582), (6, 13585485), (9, 9056990), (10, 8151291), (15, 5434194), (18, 4528495), (29, 2810790), (30, 2717097), (45, 1811398), (58, 1405395), (87, 936930), (90, 905699), (145, 562158), (174, 468465), (261, 312310), (290, 281079), (435, 187386), (522, 156155), (870, 93693), (1305, 62462), (2610, 31231)]