400950400

素因数分解:

$2^7\times 5^2\times {\mathrm{107}}^1\times {\mathrm{1171}}^1$

素因数の和:1302

約数の個数: 96

約数和(自身を含む): 1000583280

約数和(自身を除く): 599632880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 107, 128, 160, 200, 214, 320, 400, 428, 535, 640, 800, 856, 1070, 1171, 1600, 1712, 2140, 2342, 2675, 3200, 3424, 4280, 4684, 5350, 5855, 6848, 8560, 9368, 10700, 11710, 13696, 17120, 18736, 21400, 23420, 29275, 34240, 37472, 42800, 46840, 58550, 68480, 74944, 85600, 93680, 117100, 125297, 149888, 171200, 187360, 234200, 250594, 342400, 374720, 468400, 501188, 626485, 749440, 936800, 1002376, 1252970, 1873600, 2004752, 2505940, 3132425, 3747200, 4009504, 5011880, 6264850, 8019008, 10023760, 12529700, 16038016, 20047520, 25059400, 40095040, 50118800, 80190080, 100237600, 200475200, 400950400]

約数ペア:

[(1, 400950400), (2, 200475200), (4, 100237600), (5, 80190080), (8, 50118800), (10, 40095040), (16, 25059400), (20, 20047520), (25, 16038016), (32, 12529700), (40, 10023760), (50, 8019008), (64, 6264850), (80, 5011880), (100, 4009504), (107, 3747200), (128, 3132425), (160, 2505940), (200, 2004752), (214, 1873600), (320, 1252970), (400, 1002376), (428, 936800), (535, 749440), (640, 626485), (800, 501188), (856, 468400), (1070, 374720), (1171, 342400), (1600, 250594), (1712, 234200), (2140, 187360), (2342, 171200), (2675, 149888), (3200, 125297), (3424, 117100), (4280, 93680), (4684, 85600), (5350, 74944), (5855, 68480), (6848, 58550), (8560, 46840), (9368, 42800), (10700, 37472), (11710, 34240), (13696, 29275), (17120, 23420), (18736, 21400)]