198105040

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{521}}^1$

素因数の和:645

約数の個数: 120

約数和(自身を含む): 542355912

約数和(自身を除く): 344250872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 97, 98, 112, 140, 194, 196, 245, 280, 388, 392, 485, 490, 521, 560, 679, 776, 784, 970, 980, 1042, 1358, 1552, 1940, 1960, 2084, 2605, 2716, 3395, 3647, 3880, 3920, 4168, 4753, 5210, 5432, 6790, 7294, 7760, 8336, 9506, 10420, 10864, 13580, 14588, 18235, 19012, 20840, 23765, 25529, 27160, 29176, 36470, 38024, 41680, 47530, 50537, 51058, 54320, 58352, 72940, 76048, 95060, 101074, 102116, 127645, 145880, 190120, 202148, 204232, 252685, 255290, 291760, 353759, 380240, 404296, 408464, 505370, 510580, 707518, 808592, 1010740, 1021160, 1415036, 1768795, 2021480, 2042320, 2476313, 2830072, 3537590, 4042960, 4952626, 5660144, 7075180, 9905252, 12381565, 14150360, 19810504, 24763130, 28300720, 39621008, 49526260, 99052520, 198105040]

約数ペア:

[(1, 198105040), (2, 99052520), (4, 49526260), (5, 39621008), (7, 28300720), (8, 24763130), (10, 19810504), (14, 14150360), (16, 12381565), (20, 9905252), (28, 7075180), (35, 5660144), (40, 4952626), (49, 4042960), (56, 3537590), (70, 2830072), (80, 2476313), (97, 2042320), (98, 2021480), (112, 1768795), (140, 1415036), (194, 1021160), (196, 1010740), (245, 808592), (280, 707518), (388, 510580), (392, 505370), (485, 408464), (490, 404296), (521, 380240), (560, 353759), (679, 291760), (776, 255290), (784, 252685), (970, 204232), (980, 202148), (1042, 190120), (1358, 145880), (1552, 127645), (1940, 102116), (1960, 101074), (2084, 95060), (2605, 76048), (2716, 72940), (3395, 58352), (3647, 54320), (3880, 51058), (3920, 50537), (4168, 47530), (4753, 41680), (5210, 38024), (5432, 36470), (6790, 29176), (7294, 27160), (7760, 25529), (8336, 23765), (9506, 20840), (10420, 19012), (10864, 18235), (13580, 14588)]