129374720

素因数分解:

$2^9\times 5^1\times {\mathrm{97}}^1\times {\mathrm{521}}^1$

素因数の和:641

約数の個数: 80

約数和(自身を含む): 313995528

約数和(自身を除く): 184620808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 256, 320, 388, 485, 512, 521, 640, 776, 970, 1042, 1280, 1552, 1940, 2084, 2560, 2605, 3104, 3880, 4168, 5210, 6208, 7760, 8336, 10420, 12416, 15520, 16672, 20840, 24832, 31040, 33344, 41680, 49664, 50537, 62080, 66688, 83360, 101074, 124160, 133376, 166720, 202148, 248320, 252685, 266752, 333440, 404296, 505370, 666880, 808592, 1010740, 1333760, 1617184, 2021480, 3234368, 4042960, 6468736, 8085920, 12937472, 16171840, 25874944, 32343680, 64687360, 129374720]

約数ペア:

[(1, 129374720), (2, 64687360), (4, 32343680), (5, 25874944), (8, 16171840), (10, 12937472), (16, 8085920), (20, 6468736), (32, 4042960), (40, 3234368), (64, 2021480), (80, 1617184), (97, 1333760), (128, 1010740), (160, 808592), (194, 666880), (256, 505370), (320, 404296), (388, 333440), (485, 266752), (512, 252685), (521, 248320), (640, 202148), (776, 166720), (970, 133376), (1042, 124160), (1280, 101074), (1552, 83360), (1940, 66688), (2084, 62080), (2560, 50537), (2605, 49664), (3104, 41680), (3880, 33344), (4168, 31040), (5210, 24832), (6208, 20840), (7760, 16672), (8336, 15520), (10420, 12416)]