20212150

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 47139840

約数和(自身を除く): 26927690

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 34, 35, 43, 50, 70, 79, 85, 86, 119, 158, 170, 175, 215, 238, 301, 350, 395, 425, 430, 553, 595, 602, 731, 790, 850, 1075, 1106, 1190, 1343, 1462, 1505, 1975, 2150, 2686, 2765, 2975, 3010, 3397, 3655, 3950, 5117, 5530, 5950, 6715, 6794, 7310, 7525, 9401, 10234, 13430, 13825, 15050, 16985, 18275, 18802, 23779, 25585, 27650, 33575, 33970, 36550, 47005, 47558, 51170, 57749, 67150, 84925, 94010, 115498, 118895, 127925, 169850, 235025, 237790, 255850, 288745, 404243, 470050, 577490, 594475, 808486, 1188950, 1443725, 2021215, 2887450, 4042430, 10106075, 20212150]

約数ペア:

[(1, 20212150), (2, 10106075), (5, 4042430), (7, 2887450), (10, 2021215), (14, 1443725), (17, 1188950), (25, 808486), (34, 594475), (35, 577490), (43, 470050), (50, 404243), (70, 288745), (79, 255850), (85, 237790), (86, 235025), (119, 169850), (158, 127925), (170, 118895), (175, 115498), (215, 94010), (238, 84925), (301, 67150), (350, 57749), (395, 51170), (425, 47558), (430, 47005), (553, 36550), (595, 33970), (602, 33575), (731, 27650), (790, 25585), (850, 23779), (1075, 18802), (1106, 18275), (1190, 16985), (1343, 15050), (1462, 13825), (1505, 13430), (1975, 10234), (2150, 9401), (2686, 7525), (2765, 7310), (2975, 6794), (3010, 6715), (3397, 5950), (3655, 5530), (3950, 5117)]