6811980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{331}}^1$

素因数の和:364

約数の個数: 96

約数和(自身を含む): 22310400

約数和(自身を除く): 15498420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 331, 343, 420, 490, 588, 662, 686, 735, 980, 993, 1029, 1324, 1372, 1470, 1655, 1715, 1986, 2058, 2317, 2940, 3310, 3430, 3972, 4116, 4634, 4965, 5145, 6620, 6860, 6951, 9268, 9930, 10290, 11585, 13902, 16219, 19860, 20580, 23170, 27804, 32438, 34755, 46340, 48657, 64876, 69510, 81095, 97314, 113533, 139020, 162190, 194628, 227066, 243285, 324380, 340599, 454132, 486570, 567665, 681198, 973140, 1135330, 1362396, 1702995, 2270660, 3405990, 6811980]

約数ペア:

[(1, 6811980), (2, 3405990), (3, 2270660), (4, 1702995), (5, 1362396), (6, 1135330), (7, 973140), (10, 681198), (12, 567665), (14, 486570), (15, 454132), (20, 340599), (21, 324380), (28, 243285), (30, 227066), (35, 194628), (42, 162190), (49, 139020), (60, 113533), (70, 97314), (84, 81095), (98, 69510), (105, 64876), (140, 48657), (147, 46340), (196, 34755), (210, 32438), (245, 27804), (294, 23170), (331, 20580), (343, 19860), (420, 16219), (490, 13902), (588, 11585), (662, 10290), (686, 9930), (735, 9268), (980, 6951), (993, 6860), (1029, 6620), (1324, 5145), (1372, 4965), (1470, 4634), (1655, 4116), (1715, 3972), (1986, 3430), (2058, 3310), (2317, 2940)]