21938500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:154

約数の個数: 96

約数和(自身を含む): 53071200

約数和(自身を除く): 31132700

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 29, 34, 50, 58, 68, 85, 89, 100, 116, 125, 145, 170, 178, 250, 290, 340, 356, 425, 445, 493, 500, 580, 725, 850, 890, 986, 1450, 1513, 1700, 1780, 1972, 2125, 2225, 2465, 2581, 2900, 3026, 3625, 4250, 4450, 4930, 5162, 6052, 7250, 7565, 8500, 8900, 9860, 10324, 11125, 12325, 12905, 14500, 15130, 22250, 24650, 25810, 30260, 37825, 43877, 44500, 49300, 51620, 61625, 64525, 75650, 87754, 123250, 129050, 151300, 175508, 189125, 219385, 246500, 258100, 322625, 378250, 438770, 645250, 756500, 877540, 1096925, 1290500, 2193850, 4387700, 5484625, 10969250, 21938500]

約数ペア:

[(1, 21938500), (2, 10969250), (4, 5484625), (5, 4387700), (10, 2193850), (17, 1290500), (20, 1096925), (25, 877540), (29, 756500), (34, 645250), (50, 438770), (58, 378250), (68, 322625), (85, 258100), (89, 246500), (100, 219385), (116, 189125), (125, 175508), (145, 151300), (170, 129050), (178, 123250), (250, 87754), (290, 75650), (340, 64525), (356, 61625), (425, 51620), (445, 49300), (493, 44500), (500, 43877), (580, 37825), (725, 30260), (850, 25810), (890, 24650), (986, 22250), (1450, 15130), (1513, 14500), (1700, 12905), (1780, 12325), (1972, 11125), (2125, 10324), (2225, 9860), (2465, 8900), (2581, 8500), (2900, 7565), (3026, 7250), (3625, 6052), (4250, 5162), (4450, 4930)]