19187475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 34149600

約数和(自身を除く): 14962125

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 101, 149, 255, 303, 425, 447, 505, 745, 1275, 1515, 1717, 2235, 2525, 2533, 3725, 5151, 7575, 7599, 8585, 11175, 12665, 15049, 25755, 37995, 42925, 45147, 63325, 75245, 128775, 189975, 225735, 255833, 376225, 767499, 1128675, 1279165, 3837495, 6395825, 19187475]

約数ペア:

[(1, 19187475), (3, 6395825), (5, 3837495), (15, 1279165), (17, 1128675), (25, 767499), (51, 376225), (75, 255833), (85, 225735), (101, 189975), (149, 128775), (255, 75245), (303, 63325), (425, 45147), (447, 42925), (505, 37995), (745, 25755), (1275, 15049), (1515, 12665), (1717, 11175), (2235, 8585), (2525, 7599), (2533, 7575), (3725, 5151)]