31490450

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:371

約数の個数: 48

約数和(自身を含む): 61871040

約数和(自身を除く): 30380590

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 139, 197, 230, 278, 394, 575, 695, 985, 1150, 1390, 1970, 3197, 3475, 4531, 4925, 6394, 6950, 9062, 9850, 15985, 22655, 27383, 31970, 45310, 54766, 79925, 113275, 136915, 159850, 226550, 273830, 629809, 684575, 1259618, 1369150, 3149045, 6298090, 15745225, 31490450]

約数ペア:

[(1, 31490450), (2, 15745225), (5, 6298090), (10, 3149045), (23, 1369150), (25, 1259618), (46, 684575), (50, 629809), (115, 273830), (139, 226550), (197, 159850), (230, 136915), (278, 113275), (394, 79925), (575, 54766), (695, 45310), (985, 31970), (1150, 27383), (1390, 22655), (1970, 15985), (3197, 9850), (3475, 9062), (4531, 6950), (4925, 6394)]