66659920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26879}}^1$

素因数の和:26923

約数の個数: 40

約数和(自身を含む): 159989760

約数和(自身を除く): 93329840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 26879, 53758, 107516, 134395, 215032, 268790, 430064, 537580, 833249, 1075160, 1666498, 2150320, 3332996, 4166245, 6665992, 8332490, 13331984, 16664980, 33329960, 66659920]

約数ペア:

[(1, 66659920), (2, 33329960), (4, 16664980), (5, 13331984), (8, 8332490), (10, 6665992), (16, 4166245), (20, 3332996), (31, 2150320), (40, 1666498), (62, 1075160), (80, 833249), (124, 537580), (155, 430064), (248, 268790), (310, 215032), (496, 134395), (620, 107516), (1240, 53758), (2480, 26879)]