81807120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{113621}}^1$

素因数の和:113640

約数の個数: 60

約数和(自身を含む): 274737996

約数和(自身を除く): 192930876

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 113621, 227242, 340863, 454484, 568105, 681726, 908968, 1022589, 1136210, 1363452, 1704315, 1817936, 2045178, 2272420, 2726904, 3408630, 4090356, 4544840, 5112945, 5453808, 6817260, 8180712, 9089680, 10225890, 13634520, 16361424, 20451780, 27269040, 40903560, 81807120]

約数ペア:

[(1, 81807120), (2, 40903560), (3, 27269040), (4, 20451780), (5, 16361424), (6, 13634520), (8, 10225890), (9, 9089680), (10, 8180712), (12, 6817260), (15, 5453808), (16, 5112945), (18, 4544840), (20, 4090356), (24, 3408630), (30, 2726904), (36, 2272420), (40, 2045178), (45, 1817936), (48, 1704315), (60, 1363452), (72, 1136210), (80, 1022589), (90, 908968), (120, 681726), (144, 568105), (180, 454484), (240, 340863), (360, 227242), (720, 113621)]