20421750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{73}}^1\times {\mathrm{373}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 51809472

約数和(自身を除く): 31387722

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 73, 75, 125, 146, 150, 219, 250, 365, 373, 375, 438, 730, 746, 750, 1095, 1119, 1825, 1865, 2190, 2238, 3650, 3730, 5475, 5595, 9125, 9325, 10950, 11190, 18250, 18650, 27229, 27375, 27975, 46625, 54458, 54750, 55950, 81687, 93250, 136145, 139875, 163374, 272290, 279750, 408435, 680725, 816870, 1361450, 2042175, 3403625, 4084350, 6807250, 10210875, 20421750]

約数ペア:

[(1, 20421750), (2, 10210875), (3, 6807250), (5, 4084350), (6, 3403625), (10, 2042175), (15, 1361450), (25, 816870), (30, 680725), (50, 408435), (73, 279750), (75, 272290), (125, 163374), (146, 139875), (150, 136145), (219, 93250), (250, 81687), (365, 55950), (373, 54750), (375, 54458), (438, 46625), (730, 27975), (746, 27375), (750, 27229), (1095, 18650), (1119, 18250), (1825, 11190), (1865, 10950), (2190, 9325), (2238, 9125), (3650, 5595), (3730, 5475)]