18545625

素因数分解:

$3^3\times 5^4\times 7^1\times {\mathrm{157}}^1$

素因数の和:193

約数の個数: 80

約数和(自身を含む): 39487360

約数和(自身を除く): 20941735

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 125, 135, 157, 175, 189, 225, 315, 375, 471, 525, 625, 675, 785, 875, 945, 1099, 1125, 1413, 1575, 1875, 2355, 2625, 3297, 3375, 3925, 4239, 4375, 4725, 5495, 5625, 7065, 7875, 9891, 11775, 13125, 16485, 16875, 19625, 21195, 23625, 27475, 29673, 35325, 39375, 49455, 58875, 82425, 98125, 105975, 118125, 137375, 148365, 176625, 247275, 294375, 412125, 529875, 686875, 741825, 883125, 1236375, 2060625, 2649375, 3709125, 6181875, 18545625]

約数ペア:

[(1, 18545625), (3, 6181875), (5, 3709125), (7, 2649375), (9, 2060625), (15, 1236375), (21, 883125), (25, 741825), (27, 686875), (35, 529875), (45, 412125), (63, 294375), (75, 247275), (105, 176625), (125, 148365), (135, 137375), (157, 118125), (175, 105975), (189, 98125), (225, 82425), (315, 58875), (375, 49455), (471, 39375), (525, 35325), (625, 29673), (675, 27475), (785, 23625), (875, 21195), (945, 19625), (1099, 16875), (1125, 16485), (1413, 13125), (1575, 11775), (1875, 9891), (2355, 7875), (2625, 7065), (3297, 5625), (3375, 5495), (3925, 4725), (4239, 4375)]