318834256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:500

約数の個数: 80

約数和(自身を含む): 692955648

約数和(自身を除く): 374121392

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 197, 208, 248, 251, 394, 403, 496, 502, 788, 806, 1004, 1576, 1612, 2008, 2561, 3152, 3224, 3263, 4016, 5122, 6107, 6448, 6526, 7781, 10244, 12214, 13052, 15562, 20488, 24428, 26104, 31124, 40976, 48856, 49447, 52208, 62248, 79391, 97712, 98894, 101153, 124496, 158782, 197788, 202306, 317564, 395576, 404612, 635128, 642811, 791152, 809224, 1270256, 1285622, 1532857, 1618448, 2571244, 3065714, 5142488, 6131428, 10284976, 12262856, 19927141, 24525712, 39854282, 79708564, 159417128, 318834256]

約数ペア:

[(1, 318834256), (2, 159417128), (4, 79708564), (8, 39854282), (13, 24525712), (16, 19927141), (26, 12262856), (31, 10284976), (52, 6131428), (62, 5142488), (104, 3065714), (124, 2571244), (197, 1618448), (208, 1532857), (248, 1285622), (251, 1270256), (394, 809224), (403, 791152), (496, 642811), (502, 635128), (788, 404612), (806, 395576), (1004, 317564), (1576, 202306), (1612, 197788), (2008, 158782), (2561, 124496), (3152, 101153), (3224, 98894), (3263, 97712), (4016, 79391), (5122, 62248), (6107, 52208), (6448, 49447), (6526, 48856), (7781, 40976), (10244, 31124), (12214, 26104), (13052, 24428), (15562, 20488)]