20195100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1181}}^1$

素因数の和:1220

約数の個数: 108

約数和(自身を含む): 66688440

約数和(自身を除く): 46493340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 30, 36, 38, 45, 50, 57, 60, 75, 76, 90, 95, 100, 114, 150, 171, 180, 190, 225, 228, 285, 300, 342, 380, 450, 475, 570, 684, 855, 900, 950, 1140, 1181, 1425, 1710, 1900, 2362, 2850, 3420, 3543, 4275, 4724, 5700, 5905, 7086, 8550, 10629, 11810, 14172, 17100, 17715, 21258, 22439, 23620, 29525, 35430, 42516, 44878, 53145, 59050, 67317, 70860, 88575, 89756, 106290, 112195, 118100, 134634, 177150, 201951, 212580, 224390, 265725, 269268, 336585, 354300, 403902, 448780, 531450, 560975, 673170, 807804, 1009755, 1062900, 1121950, 1346340, 1682925, 2019510, 2243900, 3365850, 4039020, 5048775, 6731700, 10097550, 20195100]

約数ペア:

[(1, 20195100), (2, 10097550), (3, 6731700), (4, 5048775), (5, 4039020), (6, 3365850), (9, 2243900), (10, 2019510), (12, 1682925), (15, 1346340), (18, 1121950), (19, 1062900), (20, 1009755), (25, 807804), (30, 673170), (36, 560975), (38, 531450), (45, 448780), (50, 403902), (57, 354300), (60, 336585), (75, 269268), (76, 265725), (90, 224390), (95, 212580), (100, 201951), (114, 177150), (150, 134634), (171, 118100), (180, 112195), (190, 106290), (225, 89756), (228, 88575), (285, 70860), (300, 67317), (342, 59050), (380, 53145), (450, 44878), (475, 42516), (570, 35430), (684, 29525), (855, 23620), (900, 22439), (950, 21258), (1140, 17715), (1181, 17100), (1425, 14172), (1710, 11810), (1900, 10629), (2362, 8550), (2850, 7086), (3420, 5905), (3543, 5700), (4275, 4724)]