15953840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:970

約数の個数: 80

約数和(自身を含む): 43806720

約数和(自身を除く): 27852880

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, 919, 1085, 1240, 1736, 1838, 2170, 2480, 3472, 3676, 4340, 4595, 6433, 7352, 8680, 9190, 12866, 14704, 17360, 18380, 25732, 28489, 32165, 36760, 51464, 56978, 64330, 73520, 102928, 113956, 128660, 142445, 199423, 227912, 257320, 284890, 398846, 455824, 514640, 569780, 797692, 997115, 1139560, 1595384, 1994230, 2279120, 3190768, 3988460, 7976920, 15953840]

約数ペア:

[(1, 15953840), (2, 7976920), (4, 3988460), (5, 3190768), (7, 2279120), (8, 1994230), (10, 1595384), (14, 1139560), (16, 997115), (20, 797692), (28, 569780), (31, 514640), (35, 455824), (40, 398846), (56, 284890), (62, 257320), (70, 227912), (80, 199423), (112, 142445), (124, 128660), (140, 113956), (155, 102928), (217, 73520), (248, 64330), (280, 56978), (310, 51464), (434, 36760), (496, 32165), (560, 28489), (620, 25732), (868, 18380), (919, 17360), (1085, 14704), (1240, 12866), (1736, 9190), (1838, 8680), (2170, 7352), (2480, 6433), (3472, 4595), (3676, 4340)]