400081560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{31159}}^1$

素因数の和:31280

約数の個数: 64

約数和(自身を含む): 1211500800

約数和(自身を除く): 811419240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1605, 2140, 2568, 3210, 4280, 6420, 12840, 31159, 62318, 93477, 124636, 155795, 186954, 249272, 311590, 373908, 467385, 623180, 747816, 934770, 1246360, 1869540, 3334013, 3739080, 6668026, 10002039, 13336052, 16670065, 20004078, 26672104, 33340130, 40008156, 50010195, 66680260, 80016312, 100020390, 133360520, 200040780, 400081560]

約数ペア:

[(1, 400081560), (2, 200040780), (3, 133360520), (4, 100020390), (5, 80016312), (6, 66680260), (8, 50010195), (10, 40008156), (12, 33340130), (15, 26672104), (20, 20004078), (24, 16670065), (30, 13336052), (40, 10002039), (60, 6668026), (107, 3739080), (120, 3334013), (214, 1869540), (321, 1246360), (428, 934770), (535, 747816), (642, 623180), (856, 467385), (1070, 373908), (1284, 311590), (1605, 249272), (2140, 186954), (2568, 155795), (3210, 124636), (4280, 93477), (6420, 62318), (12840, 31159)]