20089899680

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1\times {\mathrm{8117}}^1$

素因数の和:8662

約数の個数: 96

約数和(自身を含む): 49097664000

約数和(自身を除く): 29007764320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 499, 620, 992, 998, 1240, 1996, 2480, 2495, 3992, 4960, 4990, 7984, 8117, 9980, 15469, 15968, 16234, 19960, 30938, 32468, 39920, 40585, 61876, 64936, 77345, 79840, 81170, 123752, 129872, 154690, 162340, 247504, 251627, 259744, 309380, 324680, 495008, 503254, 618760, 649360, 1006508, 1237520, 1258135, 1298720, 2013016, 2475040, 2516270, 4026032, 4050383, 5032540, 8052064, 8100766, 10065080, 16201532, 20130160, 20251915, 32403064, 40260320, 40503830, 64806128, 81007660, 125561873, 129612256, 162015320, 251123746, 324030640, 502247492, 627809365, 648061280, 1004494984, 1255618730, 2008989968, 2511237460, 4017979936, 5022474920, 10044949840, 20089899680]

約数ペア:

[(1, 20089899680), (2, 10044949840), (4, 5022474920), (5, 4017979936), (8, 2511237460), (10, 2008989968), (16, 1255618730), (20, 1004494984), (31, 648061280), (32, 627809365), (40, 502247492), (62, 324030640), (80, 251123746), (124, 162015320), (155, 129612256), (160, 125561873), (248, 81007660), (310, 64806128), (496, 40503830), (499, 40260320), (620, 32403064), (992, 20251915), (998, 20130160), (1240, 16201532), (1996, 10065080), (2480, 8100766), (2495, 8052064), (3992, 5032540), (4960, 4050383), (4990, 4026032), (7984, 2516270), (8117, 2475040), (9980, 2013016), (15469, 1298720), (15968, 1258135), (16234, 1237520), (19960, 1006508), (30938, 649360), (32468, 618760), (39920, 503254), (40585, 495008), (61876, 324680), (64936, 309380), (77345, 259744), (79840, 251627), (81170, 247504), (123752, 162340), (129872, 154690)]