254594320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{409}}^1$

素因数の和:704

約数の個数: 80

約数和(自身を含む): 614960640

約数和(自身を除く): 360366320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 251, 310, 409, 496, 502, 620, 818, 1004, 1240, 1255, 1636, 2008, 2045, 2480, 2510, 3272, 4016, 4090, 5020, 6544, 7781, 8180, 10040, 12679, 15562, 16360, 20080, 25358, 31124, 32720, 38905, 50716, 62248, 63395, 77810, 101432, 102659, 124496, 126790, 155620, 202864, 205318, 253580, 311240, 410636, 507160, 513295, 622480, 821272, 1014320, 1026590, 1642544, 2053180, 3182429, 4106360, 6364858, 8212720, 12729716, 15912145, 25459432, 31824290, 50918864, 63648580, 127297160, 254594320]

約数ペア:

[(1, 254594320), (2, 127297160), (4, 63648580), (5, 50918864), (8, 31824290), (10, 25459432), (16, 15912145), (20, 12729716), (31, 8212720), (40, 6364858), (62, 4106360), (80, 3182429), (124, 2053180), (155, 1642544), (248, 1026590), (251, 1014320), (310, 821272), (409, 622480), (496, 513295), (502, 507160), (620, 410636), (818, 311240), (1004, 253580), (1240, 205318), (1255, 202864), (1636, 155620), (2008, 126790), (2045, 124496), (2480, 102659), (2510, 101432), (3272, 77810), (4016, 63395), (4090, 62248), (5020, 50716), (6544, 38905), (7781, 32720), (8180, 31124), (10040, 25358), (12679, 20080), (15562, 16360)]