638077580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{619}}^1$

素因数の和:871

約数の個数: 96

約数和(自身を含む): 1583232000

約数和(自身を除く): 945154420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 199, 259, 370, 398, 518, 619, 740, 796, 995, 1036, 1238, 1295, 1393, 1990, 2476, 2590, 2786, 3095, 3980, 4333, 5180, 5572, 6190, 6965, 7363, 8666, 12380, 13930, 14726, 17332, 21665, 22903, 27860, 29452, 36815, 43330, 45806, 51541, 73630, 86660, 91612, 103082, 114515, 123181, 147260, 160321, 206164, 229030, 246362, 257705, 320642, 458060, 492724, 515410, 615905, 641284, 801605, 862267, 1030820, 1231810, 1603210, 1724534, 2463620, 3206420, 3449068, 4311335, 4557697, 8622670, 9115394, 17245340, 18230788, 22788485, 31903879, 45576970, 63807758, 91153940, 127615516, 159519395, 319038790, 638077580]

約数ペア:

[(1, 638077580), (2, 319038790), (4, 159519395), (5, 127615516), (7, 91153940), (10, 63807758), (14, 45576970), (20, 31903879), (28, 22788485), (35, 18230788), (37, 17245340), (70, 9115394), (74, 8622670), (140, 4557697), (148, 4311335), (185, 3449068), (199, 3206420), (259, 2463620), (370, 1724534), (398, 1603210), (518, 1231810), (619, 1030820), (740, 862267), (796, 801605), (995, 641284), (1036, 615905), (1238, 515410), (1295, 492724), (1393, 458060), (1990, 320642), (2476, 257705), (2590, 246362), (2786, 229030), (3095, 206164), (3980, 160321), (4333, 147260), (5180, 123181), (5572, 114515), (6190, 103082), (6965, 91612), (7363, 86660), (8666, 73630), (12380, 51541), (13930, 45806), (14726, 43330), (17332, 36815), (21665, 29452), (22903, 27860)]