40009900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{937}}^1$

素因数の和:1019

約数の個数: 72

約数和(自身を含む): 100958816

約数和(自身を除く): 60948916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 61, 70, 100, 122, 140, 175, 244, 305, 350, 427, 610, 700, 854, 937, 1220, 1525, 1708, 1874, 2135, 3050, 3748, 4270, 4685, 6100, 6559, 8540, 9370, 10675, 13118, 18740, 21350, 23425, 26236, 32795, 42700, 46850, 57157, 65590, 93700, 114314, 131180, 163975, 228628, 285785, 327950, 400099, 571570, 655900, 800198, 1143140, 1428925, 1600396, 2000495, 2857850, 4000990, 5715700, 8001980, 10002475, 20004950, 40009900]

約数ペア:

[(1, 40009900), (2, 20004950), (4, 10002475), (5, 8001980), (7, 5715700), (10, 4000990), (14, 2857850), (20, 2000495), (25, 1600396), (28, 1428925), (35, 1143140), (50, 800198), (61, 655900), (70, 571570), (100, 400099), (122, 327950), (140, 285785), (175, 228628), (244, 163975), (305, 131180), (350, 114314), (427, 93700), (610, 65590), (700, 57157), (854, 46850), (937, 42700), (1220, 32795), (1525, 26236), (1708, 23425), (1874, 21350), (2135, 18740), (3050, 13118), (3748, 10675), (4270, 9370), (4685, 8540), (6100, 6559)]