161256800

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^2$

素因数の和:245

約数の個数: 108

約数和(自身を含む): 418449780

約数和(自身を除く): 257192980

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 76, 80, 95, 100, 103, 152, 160, 190, 200, 206, 304, 380, 400, 412, 475, 515, 608, 760, 800, 824, 950, 1030, 1520, 1648, 1900, 1957, 2060, 2575, 3040, 3296, 3800, 3914, 4120, 5150, 7600, 7828, 8240, 9785, 10300, 10609, 15200, 15656, 16480, 19570, 20600, 21218, 31312, 39140, 41200, 42436, 48925, 53045, 62624, 78280, 82400, 84872, 97850, 106090, 156560, 169744, 195700, 201571, 212180, 265225, 313120, 339488, 391400, 403142, 424360, 530450, 782800, 806284, 848720, 1007855, 1060900, 1565600, 1612568, 1697440, 2015710, 2121800, 3225136, 4031420, 4243600, 5039275, 6450272, 8062840, 8487200, 10078550, 16125680, 20157100, 32251360, 40314200, 80628400, 161256800]

約数ペア:

[(1, 161256800), (2, 80628400), (4, 40314200), (5, 32251360), (8, 20157100), (10, 16125680), (16, 10078550), (19, 8487200), (20, 8062840), (25, 6450272), (32, 5039275), (38, 4243600), (40, 4031420), (50, 3225136), (76, 2121800), (80, 2015710), (95, 1697440), (100, 1612568), (103, 1565600), (152, 1060900), (160, 1007855), (190, 848720), (200, 806284), (206, 782800), (304, 530450), (380, 424360), (400, 403142), (412, 391400), (475, 339488), (515, 313120), (608, 265225), (760, 212180), (800, 201571), (824, 195700), (950, 169744), (1030, 156560), (1520, 106090), (1648, 97850), (1900, 84872), (1957, 82400), (2060, 78280), (2575, 62624), (3040, 53045), (3296, 48925), (3800, 42436), (3914, 41200), (4120, 39140), (5150, 31312), (7600, 21218), (7828, 20600), (8240, 19570), (9785, 16480), (10300, 15656), (10609, 15200)]