31138880

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:164

約数の個数: 112

約数和(自身を含む): 79394304

約数和(自身を除く): 48255424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 43, 62, 64, 73, 80, 86, 124, 146, 155, 160, 172, 215, 248, 292, 310, 320, 344, 365, 430, 496, 584, 620, 688, 730, 860, 992, 1168, 1240, 1333, 1376, 1460, 1720, 1984, 2263, 2336, 2480, 2666, 2752, 2920, 3139, 3440, 4526, 4672, 4960, 5332, 5840, 6278, 6665, 6880, 9052, 9920, 10664, 11315, 11680, 12556, 13330, 13760, 15695, 18104, 21328, 22630, 23360, 25112, 26660, 31390, 36208, 42656, 45260, 50224, 53320, 62780, 72416, 85312, 90520, 97309, 100448, 106640, 125560, 144832, 181040, 194618, 200896, 213280, 251120, 362080, 389236, 426560, 486545, 502240, 724160, 778472, 973090, 1004480, 1556944, 1946180, 3113888, 3892360, 6227776, 7784720, 15569440, 31138880]

約数ペア:

[(1, 31138880), (2, 15569440), (4, 7784720), (5, 6227776), (8, 3892360), (10, 3113888), (16, 1946180), (20, 1556944), (31, 1004480), (32, 973090), (40, 778472), (43, 724160), (62, 502240), (64, 486545), (73, 426560), (80, 389236), (86, 362080), (124, 251120), (146, 213280), (155, 200896), (160, 194618), (172, 181040), (215, 144832), (248, 125560), (292, 106640), (310, 100448), (320, 97309), (344, 90520), (365, 85312), (430, 72416), (496, 62780), (584, 53320), (620, 50224), (688, 45260), (730, 42656), (860, 36208), (992, 31390), (1168, 26660), (1240, 25112), (1333, 23360), (1376, 22630), (1460, 21328), (1720, 18104), (1984, 15695), (2263, 13760), (2336, 13330), (2480, 12556), (2666, 11680), (2752, 11315), (2920, 10664), (3139, 9920), (3440, 9052), (4526, 6880), (4672, 6665), (4960, 6278), (5332, 5840)]