164438500

素因数分解:

$2^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:302

約数の個数: 96

約数和(自身を含む): 381588480

約数和(自身を除く): 217149980

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 79, 92, 100, 115, 125, 158, 181, 230, 250, 316, 362, 395, 460, 500, 575, 724, 790, 905, 1150, 1580, 1810, 1817, 1975, 2300, 2875, 3620, 3634, 3950, 4163, 4525, 5750, 7268, 7900, 8326, 9050, 9085, 9875, 11500, 14299, 16652, 18100, 18170, 19750, 20815, 22625, 28598, 36340, 39500, 41630, 45250, 45425, 57196, 71495, 83260, 90500, 90850, 104075, 142990, 181700, 208150, 227125, 285980, 328877, 357475, 416300, 454250, 520375, 657754, 714950, 908500, 1040750, 1315508, 1429900, 1644385, 1787375, 2081500, 3288770, 3574750, 6577540, 7149500, 8221925, 16443850, 32887700, 41109625, 82219250, 164438500]

約数ペア:

[(1, 164438500), (2, 82219250), (4, 41109625), (5, 32887700), (10, 16443850), (20, 8221925), (23, 7149500), (25, 6577540), (46, 3574750), (50, 3288770), (79, 2081500), (92, 1787375), (100, 1644385), (115, 1429900), (125, 1315508), (158, 1040750), (181, 908500), (230, 714950), (250, 657754), (316, 520375), (362, 454250), (395, 416300), (460, 357475), (500, 328877), (575, 285980), (724, 227125), (790, 208150), (905, 181700), (1150, 142990), (1580, 104075), (1810, 90850), (1817, 90500), (1975, 83260), (2300, 71495), (2875, 57196), (3620, 45425), (3634, 45250), (3950, 41630), (4163, 39500), (4525, 36340), (5750, 28598), (7268, 22625), (7900, 20815), (8326, 19750), (9050, 18170), (9085, 18100), (9875, 16652), (11500, 14299)]