189901040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10939}}^1$

素因数の和:10990

約数の個数: 80

約数和(自身を含む): 520919040

約数和(自身を除く): 331018000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 10939, 17360, 21878, 43756, 54695, 76573, 87512, 109390, 153146, 175024, 218780, 306292, 339109, 382865, 437560, 612584, 678218, 765730, 875120, 1225168, 1356436, 1531460, 1695545, 2373763, 2712872, 3062920, 3391090, 4747526, 5425744, 6125840, 6782180, 9495052, 11868815, 13564360, 18990104, 23737630, 27128720, 37980208, 47475260, 94950520, 189901040]

約数ペア:

[(1, 189901040), (2, 94950520), (4, 47475260), (5, 37980208), (7, 27128720), (8, 23737630), (10, 18990104), (14, 13564360), (16, 11868815), (20, 9495052), (28, 6782180), (31, 6125840), (35, 5425744), (40, 4747526), (56, 3391090), (62, 3062920), (70, 2712872), (80, 2373763), (112, 1695545), (124, 1531460), (140, 1356436), (155, 1225168), (217, 875120), (248, 765730), (280, 678218), (310, 612584), (434, 437560), (496, 382865), (560, 339109), (620, 306292), (868, 218780), (1085, 175024), (1240, 153146), (1736, 109390), (2170, 87512), (2480, 76573), (3472, 54695), (4340, 43756), (8680, 21878), (10939, 17360)]