20557170

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9931}}^1$

素因数の和:9967

約数の個数: 48

約数和(自身を含む): 55778112

約数和(自身を除く): 35220942

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 690, 1035, 2070, 9931, 19862, 29793, 49655, 59586, 89379, 99310, 148965, 178758, 228413, 297930, 446895, 456826, 685239, 893790, 1142065, 1370478, 2055717, 2284130, 3426195, 4111434, 6852390, 10278585, 20557170]

約数ペア:

[(1, 20557170), (2, 10278585), (3, 6852390), (5, 4111434), (6, 3426195), (9, 2284130), (10, 2055717), (15, 1370478), (18, 1142065), (23, 893790), (30, 685239), (45, 456826), (46, 446895), (69, 297930), (90, 228413), (115, 178758), (138, 148965), (207, 99310), (230, 89379), (345, 59586), (414, 49655), (690, 29793), (1035, 19862), (2070, 9931)]