19306480

素因数分解:

$2^4\times 5^1\times {\mathrm{373}}^1\times {\mathrm{647}}^1$

素因数の和:1033

約数の個数: 40

約数和(自身を含む): 45077472

約数和(自身を除く): 25770992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 373, 647, 746, 1294, 1492, 1865, 2588, 2984, 3235, 3730, 5176, 5968, 6470, 7460, 10352, 12940, 14920, 25880, 29840, 51760, 241331, 482662, 965324, 1206655, 1930648, 2413310, 3861296, 4826620, 9653240, 19306480]

約数ペア:

[(1, 19306480), (2, 9653240), (4, 4826620), (5, 3861296), (8, 2413310), (10, 1930648), (16, 1206655), (20, 965324), (40, 482662), (80, 241331), (373, 51760), (647, 29840), (746, 25880), (1294, 14920), (1492, 12940), (1865, 10352), (2588, 7460), (2984, 6470), (3235, 5968), (3730, 5176)]