16393940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 36312192

約数和(自身を除く): 19918252

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 157, 227, 230, 314, 454, 460, 628, 785, 908, 1135, 1570, 2270, 3140, 3611, 4540, 5221, 7222, 10442, 14444, 18055, 20884, 26105, 35639, 36110, 52210, 71278, 72220, 104420, 142556, 178195, 356390, 712780, 819697, 1639394, 3278788, 4098485, 8196970, 16393940]

約数ペア:

[(1, 16393940), (2, 8196970), (4, 4098485), (5, 3278788), (10, 1639394), (20, 819697), (23, 712780), (46, 356390), (92, 178195), (115, 142556), (157, 104420), (227, 72220), (230, 71278), (314, 52210), (454, 36110), (460, 35639), (628, 26105), (785, 20884), (908, 18055), (1135, 14444), (1570, 10442), (2270, 7222), (3140, 5221), (3611, 4540)]