64991220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{571}}^1$

素因数の和:861

約数の個数: 96

約数和(自身を含む): 209104896

約数和(自身を除く): 144113676

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, 271, 420, 542, 571, 813, 1084, 1142, 1355, 1626, 1713, 1897, 2284, 2710, 2855, 3252, 3426, 3794, 3997, 4065, 5420, 5691, 5710, 6852, 7588, 7994, 8130, 8565, 9485, 11382, 11420, 11991, 15988, 16260, 17130, 18970, 19985, 22764, 23982, 28455, 34260, 37940, 39970, 47964, 56910, 59955, 79940, 113820, 119910, 154741, 239820, 309482, 464223, 618964, 773705, 928446, 1083187, 1547410, 1856892, 2166374, 2321115, 3094820, 3249561, 4332748, 4642230, 5415935, 6499122, 9284460, 10831870, 12998244, 16247805, 21663740, 32495610, 64991220]

約数ペア:

[(1, 64991220), (2, 32495610), (3, 21663740), (4, 16247805), (5, 12998244), (6, 10831870), (7, 9284460), (10, 6499122), (12, 5415935), (14, 4642230), (15, 4332748), (20, 3249561), (21, 3094820), (28, 2321115), (30, 2166374), (35, 1856892), (42, 1547410), (60, 1083187), (70, 928446), (84, 773705), (105, 618964), (140, 464223), (210, 309482), (271, 239820), (420, 154741), (542, 119910), (571, 113820), (813, 79940), (1084, 59955), (1142, 56910), (1355, 47964), (1626, 39970), (1713, 37940), (1897, 34260), (2284, 28455), (2710, 23982), (2855, 22764), (3252, 19985), (3426, 18970), (3794, 17130), (3997, 16260), (4065, 15988), (5420, 11991), (5691, 11420), (5710, 11382), (6852, 9485), (7588, 8565), (7994, 8130)]