970990000

素因数分解:

$2^4\times 5^4\times {\mathrm{89}}^1\times {\mathrm{1091}}^1$

素因数の和:1208

約数の個数: 100

約数和(自身を含む): 2379457080

約数和(自身を除く): 1408467080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 89, 100, 125, 178, 200, 250, 356, 400, 445, 500, 625, 712, 890, 1000, 1091, 1250, 1424, 1780, 2000, 2182, 2225, 2500, 3560, 4364, 4450, 5000, 5455, 7120, 8728, 8900, 10000, 10910, 11125, 17456, 17800, 21820, 22250, 27275, 35600, 43640, 44500, 54550, 55625, 87280, 89000, 97099, 109100, 111250, 136375, 178000, 194198, 218200, 222500, 272750, 388396, 436400, 445000, 485495, 545500, 681875, 776792, 890000, 970990, 1091000, 1363750, 1553584, 1941980, 2182000, 2427475, 2727500, 3883960, 4854950, 5455000, 7767920, 9709900, 10910000, 12137375, 19419800, 24274750, 38839600, 48549500, 60686875, 97099000, 121373750, 194198000, 242747500, 485495000, 970990000]

約数ペア:

[(1, 970990000), (2, 485495000), (4, 242747500), (5, 194198000), (8, 121373750), (10, 97099000), (16, 60686875), (20, 48549500), (25, 38839600), (40, 24274750), (50, 19419800), (80, 12137375), (89, 10910000), (100, 9709900), (125, 7767920), (178, 5455000), (200, 4854950), (250, 3883960), (356, 2727500), (400, 2427475), (445, 2182000), (500, 1941980), (625, 1553584), (712, 1363750), (890, 1091000), (1000, 970990), (1091, 890000), (1250, 776792), (1424, 681875), (1780, 545500), (2000, 485495), (2182, 445000), (2225, 436400), (2500, 388396), (3560, 272750), (4364, 222500), (4450, 218200), (5000, 194198), (5455, 178000), (7120, 136375), (8728, 111250), (8900, 109100), (10000, 97099), (10910, 89000), (11125, 87280), (17456, 55625), (17800, 54550), (21820, 44500), (22250, 43640), (27275, 35600)]