204498420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1471}}^1$

素因数の和:1821

約数の個数: 96

約数和(自身を含む): 656818176

約数和(自身を除く): 452319756

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 331, 420, 662, 993, 1324, 1471, 1655, 1986, 2317, 2942, 3310, 3972, 4413, 4634, 4965, 5884, 6620, 6951, 7355, 8826, 9268, 9930, 10297, 11585, 13902, 14710, 17652, 19860, 20594, 22065, 23170, 27804, 29420, 30891, 34755, 41188, 44130, 46340, 51485, 61782, 69510, 88260, 102970, 123564, 139020, 154455, 205940, 308910, 486901, 617820, 973802, 1460703, 1947604, 2434505, 2921406, 3408307, 4869010, 5842812, 6816614, 7303515, 9738020, 10224921, 13633228, 14607030, 17041535, 20449842, 29214060, 34083070, 40899684, 51124605, 68166140, 102249210, 204498420]

約数ペア:

[(1, 204498420), (2, 102249210), (3, 68166140), (4, 51124605), (5, 40899684), (6, 34083070), (7, 29214060), (10, 20449842), (12, 17041535), (14, 14607030), (15, 13633228), (20, 10224921), (21, 9738020), (28, 7303515), (30, 6816614), (35, 5842812), (42, 4869010), (60, 3408307), (70, 2921406), (84, 2434505), (105, 1947604), (140, 1460703), (210, 973802), (331, 617820), (420, 486901), (662, 308910), (993, 205940), (1324, 154455), (1471, 139020), (1655, 123564), (1986, 102970), (2317, 88260), (2942, 69510), (3310, 61782), (3972, 51485), (4413, 46340), (4634, 44130), (4965, 41188), (5884, 34755), (6620, 30891), (6951, 29420), (7355, 27804), (8826, 23170), (9268, 22065), (9930, 20594), (10297, 19860), (11585, 17652), (13902, 14710)]