39838720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:307

約数の個数: 88

約数和(自身を含む): 99042048

約数和(自身を除く): 59203328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 251, 256, 310, 320, 496, 502, 512, 620, 640, 992, 1004, 1024, 1240, 1255, 1280, 1984, 2008, 2480, 2510, 2560, 3968, 4016, 4960, 5020, 5120, 7781, 7936, 8032, 9920, 10040, 15562, 15872, 16064, 19840, 20080, 31124, 31744, 32128, 38905, 39680, 40160, 62248, 64256, 77810, 79360, 80320, 124496, 128512, 155620, 158720, 160640, 248992, 257024, 311240, 321280, 497984, 622480, 642560, 995968, 1244960, 1285120, 1991936, 2489920, 3983872, 4979840, 7967744, 9959680, 19919360, 39838720]

約数ペア:

[(1, 39838720), (2, 19919360), (4, 9959680), (5, 7967744), (8, 4979840), (10, 3983872), (16, 2489920), (20, 1991936), (31, 1285120), (32, 1244960), (40, 995968), (62, 642560), (64, 622480), (80, 497984), (124, 321280), (128, 311240), (155, 257024), (160, 248992), (248, 160640), (251, 158720), (256, 155620), (310, 128512), (320, 124496), (496, 80320), (502, 79360), (512, 77810), (620, 64256), (640, 62248), (992, 40160), (1004, 39680), (1024, 38905), (1240, 32128), (1255, 31744), (1280, 31124), (1984, 20080), (2008, 19840), (2480, 16064), (2510, 15872), (2560, 15562), (3968, 10040), (4016, 9920), (4960, 8032), (5020, 7936), (5120, 7781)]