153900820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{2131}}^1$

素因数の和:2320

約数の個数: 48

約数和(自身を含む): 339550848

約数和(自身を除く): 185650028

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 157, 230, 314, 460, 628, 785, 1570, 2131, 3140, 3611, 4262, 7222, 8524, 10655, 14444, 18055, 21310, 36110, 42620, 49013, 72220, 98026, 196052, 245065, 334567, 490130, 669134, 980260, 1338268, 1672835, 3345670, 6691340, 7695041, 15390082, 30780164, 38475205, 76950410, 153900820]

約数ペア:

[(1, 153900820), (2, 76950410), (4, 38475205), (5, 30780164), (10, 15390082), (20, 7695041), (23, 6691340), (46, 3345670), (92, 1672835), (115, 1338268), (157, 980260), (230, 669134), (314, 490130), (460, 334567), (628, 245065), (785, 196052), (1570, 98026), (2131, 72220), (3140, 49013), (3611, 42620), (4262, 36110), (7222, 21310), (8524, 18055), (10655, 14444)]