20197786240

素因数分解:

$2^7\times 5^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{3407}}^1$

素因数の和:3642

約数の個数: 128

約数和(自身を含む): 49430995200

約数和(自身を除く): 29233208960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 64, 80, 118, 128, 157, 160, 236, 295, 314, 320, 472, 590, 628, 640, 785, 944, 1180, 1256, 1570, 1888, 2360, 2512, 3140, 3407, 3776, 4720, 5024, 6280, 6814, 7552, 9263, 9440, 10048, 12560, 13628, 17035, 18526, 18880, 20096, 25120, 27256, 34070, 37052, 37760, 46315, 50240, 54512, 68140, 74104, 92630, 100480, 109024, 136280, 148208, 185260, 201013, 218048, 272560, 296416, 370520, 402026, 436096, 534899, 545120, 592832, 741040, 804052, 1005065, 1069798, 1090240, 1185664, 1482080, 1608104, 2010130, 2139596, 2180480, 2674495, 2964160, 3216208, 4020260, 4279192, 5348990, 5928320, 6432416, 8040520, 8558384, 10697980, 12864832, 16081040, 17116768, 21395960, 25729664, 31559041, 32162080, 34233536, 42791920, 63118082, 64324160, 68467072, 85583840, 126236164, 128648320, 157795205, 171167680, 252472328, 315590410, 342335360, 504944656, 631180820, 1009889312, 1262361640, 2019778624, 2524723280, 4039557248, 5049446560, 10098893120, 20197786240]

約数ペア:

[(1, 20197786240), (2, 10098893120), (4, 5049446560), (5, 4039557248), (8, 2524723280), (10, 2019778624), (16, 1262361640), (20, 1009889312), (32, 631180820), (40, 504944656), (59, 342335360), (64, 315590410), (80, 252472328), (118, 171167680), (128, 157795205), (157, 128648320), (160, 126236164), (236, 85583840), (295, 68467072), (314, 64324160), (320, 63118082), (472, 42791920), (590, 34233536), (628, 32162080), (640, 31559041), (785, 25729664), (944, 21395960), (1180, 17116768), (1256, 16081040), (1570, 12864832), (1888, 10697980), (2360, 8558384), (2512, 8040520), (3140, 6432416), (3407, 5928320), (3776, 5348990), (4720, 4279192), (5024, 4020260), (6280, 3216208), (6814, 2964160), (7552, 2674495), (9263, 2180480), (9440, 2139596), (10048, 2010130), (12560, 1608104), (13628, 1482080), (17035, 1185664), (18526, 1090240), (18880, 1069798), (20096, 1005065), (25120, 804052), (27256, 741040), (34070, 592832), (37052, 545120), (37760, 534899), (46315, 436096), (50240, 402026), (54512, 370520), (68140, 296416), (74104, 272560), (92630, 218048), (100480, 201013), (109024, 185260), (136280, 148208)]