78957760

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{349}}^1$

素因数の和:474

約数の個数: 112

約数和(自身を含む): 217627200

約数和(自身を除く): 138669440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 101, 112, 140, 160, 202, 224, 280, 320, 349, 404, 448, 505, 560, 698, 707, 808, 1010, 1120, 1396, 1414, 1616, 1745, 2020, 2240, 2443, 2792, 2828, 3232, 3490, 3535, 4040, 4886, 5584, 5656, 6464, 6980, 7070, 8080, 9772, 11168, 11312, 12215, 13960, 14140, 16160, 19544, 22336, 22624, 24430, 27920, 28280, 32320, 35249, 39088, 45248, 48860, 55840, 56560, 70498, 78176, 97720, 111680, 113120, 140996, 156352, 176245, 195440, 226240, 246743, 281992, 352490, 390880, 493486, 563984, 704980, 781760, 986972, 1127968, 1233715, 1409960, 1973944, 2255936, 2467430, 2819920, 3947888, 4934860, 5639840, 7895776, 9869720, 11279680, 15791552, 19739440, 39478880, 78957760]

約数ペア:

[(1, 78957760), (2, 39478880), (4, 19739440), (5, 15791552), (7, 11279680), (8, 9869720), (10, 7895776), (14, 5639840), (16, 4934860), (20, 3947888), (28, 2819920), (32, 2467430), (35, 2255936), (40, 1973944), (56, 1409960), (64, 1233715), (70, 1127968), (80, 986972), (101, 781760), (112, 704980), (140, 563984), (160, 493486), (202, 390880), (224, 352490), (280, 281992), (320, 246743), (349, 226240), (404, 195440), (448, 176245), (505, 156352), (560, 140996), (698, 113120), (707, 111680), (808, 97720), (1010, 78176), (1120, 70498), (1396, 56560), (1414, 55840), (1616, 48860), (1745, 45248), (2020, 39088), (2240, 35249), (2443, 32320), (2792, 28280), (2828, 27920), (3232, 24430), (3490, 22624), (3535, 22336), (4040, 19544), (4886, 16160), (5584, 14140), (5656, 13960), (6464, 12215), (6980, 11312), (7070, 11168), (8080, 9772)]