388513980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{4723}}^1$

素因数の和:5195

約数の個数: 72

約数和(自身を含む): 1181321232

約数和(自身を除く): 792807252

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 457, 914, 1371, 1828, 2285, 2742, 4113, 4570, 4723, 5484, 6855, 8226, 9140, 9446, 13710, 14169, 16452, 18892, 20565, 23615, 27420, 28338, 41130, 42507, 47230, 56676, 70845, 82260, 85014, 94460, 141690, 170028, 212535, 283380, 425070, 850140, 2158411, 4316822, 6475233, 8633644, 10792055, 12950466, 19425699, 21584110, 25900932, 32376165, 38851398, 43168220, 64752330, 77702796, 97128495, 129504660, 194256990, 388513980]

約数ペア:

[(1, 388513980), (2, 194256990), (3, 129504660), (4, 97128495), (5, 77702796), (6, 64752330), (9, 43168220), (10, 38851398), (12, 32376165), (15, 25900932), (18, 21584110), (20, 19425699), (30, 12950466), (36, 10792055), (45, 8633644), (60, 6475233), (90, 4316822), (180, 2158411), (457, 850140), (914, 425070), (1371, 283380), (1828, 212535), (2285, 170028), (2742, 141690), (4113, 94460), (4570, 85014), (4723, 82260), (5484, 70845), (6855, 56676), (8226, 47230), (9140, 42507), (9446, 41130), (13710, 28338), (14169, 27420), (16452, 23615), (18892, 20565)]