15961280

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1657

約数の個数: 56

約数和(自身を含む): 39258240

約数和(自身を除く): 23296960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1609, 1984, 2480, 3218, 4960, 6436, 8045, 9920, 12872, 16090, 25744, 32180, 49879, 51488, 64360, 99758, 102976, 128720, 199516, 249395, 257440, 399032, 498790, 514880, 798064, 997580, 1596128, 1995160, 3192256, 3990320, 7980640, 15961280]

約数ペア:

[(1, 15961280), (2, 7980640), (4, 3990320), (5, 3192256), (8, 1995160), (10, 1596128), (16, 997580), (20, 798064), (31, 514880), (32, 498790), (40, 399032), (62, 257440), (64, 249395), (80, 199516), (124, 128720), (155, 102976), (160, 99758), (248, 64360), (310, 51488), (320, 49879), (496, 32180), (620, 25744), (992, 16090), (1240, 12872), (1609, 9920), (1984, 8045), (2480, 6436), (3218, 4960)]