28221060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:386

約数の個数: 144

約数和(自身を含む): 95376960

約数和(自身を除く): 67155900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 49, 58, 60, 70, 84, 87, 98, 105, 116, 140, 145, 147, 174, 196, 203, 210, 245, 290, 294, 331, 348, 406, 420, 435, 490, 580, 588, 609, 662, 735, 812, 870, 980, 993, 1015, 1218, 1324, 1421, 1470, 1655, 1740, 1986, 2030, 2317, 2436, 2842, 2940, 3045, 3310, 3972, 4060, 4263, 4634, 4965, 5684, 6090, 6620, 6951, 7105, 8526, 9268, 9599, 9930, 11585, 12180, 13902, 14210, 16219, 17052, 19198, 19860, 21315, 23170, 27804, 28420, 28797, 32438, 34755, 38396, 42630, 46340, 47995, 48657, 57594, 64876, 67193, 69510, 81095, 85260, 95990, 97314, 115188, 134386, 139020, 143985, 162190, 191980, 194628, 201579, 243285, 268772, 287970, 324380, 335965, 403158, 470351, 486570, 575940, 671930, 806316, 940702, 973140, 1007895, 1343860, 1411053, 1881404, 2015790, 2351755, 2822106, 4031580, 4703510, 5644212, 7055265, 9407020, 14110530, 28221060]

約数ペア:

[(1, 28221060), (2, 14110530), (3, 9407020), (4, 7055265), (5, 5644212), (6, 4703510), (7, 4031580), (10, 2822106), (12, 2351755), (14, 2015790), (15, 1881404), (20, 1411053), (21, 1343860), (28, 1007895), (29, 973140), (30, 940702), (35, 806316), (42, 671930), (49, 575940), (58, 486570), (60, 470351), (70, 403158), (84, 335965), (87, 324380), (98, 287970), (105, 268772), (116, 243285), (140, 201579), (145, 194628), (147, 191980), (174, 162190), (196, 143985), (203, 139020), (210, 134386), (245, 115188), (290, 97314), (294, 95990), (331, 85260), (348, 81095), (406, 69510), (420, 67193), (435, 64876), (490, 57594), (580, 48657), (588, 47995), (609, 46340), (662, 42630), (735, 38396), (812, 34755), (870, 32438), (980, 28797), (993, 28420), (1015, 27804), (1218, 23170), (1324, 21315), (1421, 19860), (1470, 19198), (1655, 17052), (1740, 16219), (1986, 14210), (2030, 13902), (2317, 12180), (2436, 11585), (2842, 9930), (2940, 9599), (3045, 9268), (3310, 8526), (3972, 7105), (4060, 6951), (4263, 6620), (4634, 6090), (4965, 5684)]