203428980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2473}}^1$

素因数の和:2945

約数の個数: 72

約数和(自身を含む): 618668232

約数和(自身を除く): 415239252

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, 2473, 2742, 4113, 4570, 4946, 5484, 6855, 7419, 8226, 9140, 9892, 12365, 13710, 14838, 16452, 20565, 22257, 24730, 27420, 29676, 37095, 41130, 44514, 49460, 74190, 82260, 89028, 111285, 148380, 222570, 445140, 1130161, 2260322, 3390483, 4520644, 5650805, 6780966, 10171449, 11301610, 13561932, 16952415, 20342898, 22603220, 33904830, 40685796, 50857245, 67809660, 101714490, 203428980]

約数ペア:

[(1, 203428980), (2, 101714490), (3, 67809660), (4, 50857245), (5, 40685796), (6, 33904830), (9, 22603220), (10, 20342898), (12, 16952415), (15, 13561932), (18, 11301610), (20, 10171449), (30, 6780966), (36, 5650805), (45, 4520644), (60, 3390483), (90, 2260322), (180, 1130161), (457, 445140), (914, 222570), (1371, 148380), (1828, 111285), (2285, 89028), (2473, 82260), (2742, 74190), (4113, 49460), (4570, 44514), (4946, 41130), (5484, 37095), (6855, 29676), (7419, 27420), (8226, 24730), (9140, 22257), (9892, 20565), (12365, 16452), (13710, 14838)]