18778950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1439}}^1$

素因数の和:1486

約数の個数: 72

約数和(自身を含む): 52228800

約数和(自身を除く): 33449850

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 29, 30, 45, 50, 58, 75, 87, 90, 145, 150, 174, 225, 261, 290, 435, 450, 522, 725, 870, 1305, 1439, 1450, 2175, 2610, 2878, 4317, 4350, 6525, 7195, 8634, 12951, 13050, 14390, 21585, 25902, 35975, 41731, 43170, 64755, 71950, 83462, 107925, 125193, 129510, 208655, 215850, 250386, 323775, 375579, 417310, 625965, 647550, 751158, 1043275, 1251930, 1877895, 2086550, 3129825, 3755790, 6259650, 9389475, 18778950]

約数ペア:

[(1, 18778950), (2, 9389475), (3, 6259650), (5, 3755790), (6, 3129825), (9, 2086550), (10, 1877895), (15, 1251930), (18, 1043275), (25, 751158), (29, 647550), (30, 625965), (45, 417310), (50, 375579), (58, 323775), (75, 250386), (87, 215850), (90, 208655), (145, 129510), (150, 125193), (174, 107925), (225, 83462), (261, 71950), (290, 64755), (435, 43170), (450, 41731), (522, 35975), (725, 25902), (870, 21585), (1305, 14390), (1439, 13050), (1450, 12951), (2175, 8634), (2610, 7195), (2878, 6525), (4317, 4350)]