19633850

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:335

約数の個数: 48

約数和(自身を含む): 38568960

約数和(自身を除く): 18935110

約数列:

[1, 2, 5, 10, 25, 31, 50, 53, 62, 106, 155, 239, 265, 310, 478, 530, 775, 1195, 1325, 1550, 1643, 2390, 2650, 3286, 5975, 7409, 8215, 11950, 12667, 14818, 16430, 25334, 37045, 41075, 63335, 74090, 82150, 126670, 185225, 316675, 370450, 392677, 633350, 785354, 1963385, 3926770, 9816925, 19633850]

約数ペア:

[(1, 19633850), (2, 9816925), (5, 3926770), (10, 1963385), (25, 785354), (31, 633350), (50, 392677), (53, 370450), (62, 316675), (106, 185225), (155, 126670), (239, 82150), (265, 74090), (310, 63335), (478, 41075), (530, 37045), (775, 25334), (1195, 16430), (1325, 14818), (1550, 12667), (1643, 11950), (2390, 8215), (2650, 7409), (3286, 5975)]