21524780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{641}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 47888064

約数和(自身を除く): 26363284

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 73, 92, 115, 146, 230, 292, 365, 460, 641, 730, 1282, 1460, 1679, 2564, 3205, 3358, 6410, 6716, 8395, 12820, 14743, 16790, 29486, 33580, 46793, 58972, 73715, 93586, 147430, 187172, 233965, 294860, 467930, 935860, 1076239, 2152478, 4304956, 5381195, 10762390, 21524780]

約数ペア:

[(1, 21524780), (2, 10762390), (4, 5381195), (5, 4304956), (10, 2152478), (20, 1076239), (23, 935860), (46, 467930), (73, 294860), (92, 233965), (115, 187172), (146, 147430), (230, 93586), (292, 73715), (365, 58972), (460, 46793), (641, 33580), (730, 29486), (1282, 16790), (1460, 14743), (1679, 12820), (2564, 8395), (3205, 6716), (3358, 6410)]