172640000

素因数分解:

$2^8\times 5^4\times {\mathrm{13}}^1\times {\mathrm{83}}^1$

素因数の和:132

約数の個数: 180

約数和(自身を含む): 469331016

約数和(自身を除く): 296691016

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 83, 100, 104, 125, 128, 130, 160, 166, 200, 208, 250, 256, 260, 320, 325, 332, 400, 415, 416, 500, 520, 625, 640, 650, 664, 800, 830, 832, 1000, 1040, 1079, 1250, 1280, 1300, 1328, 1600, 1625, 1660, 1664, 2000, 2075, 2080, 2158, 2500, 2600, 2656, 3200, 3250, 3320, 3328, 4000, 4150, 4160, 4316, 5000, 5200, 5312, 5395, 6400, 6500, 6640, 8000, 8125, 8300, 8320, 8632, 10000, 10375, 10400, 10624, 10790, 13000, 13280, 16000, 16250, 16600, 16640, 17264, 20000, 20750, 20800, 21248, 21580, 26000, 26560, 26975, 32000, 32500, 33200, 34528, 40000, 41500, 41600, 43160, 51875, 52000, 53120, 53950, 65000, 66400, 69056, 80000, 83000, 83200, 86320, 103750, 104000, 106240, 107900, 130000, 132800, 134875, 138112, 160000, 166000, 172640, 207500, 208000, 215800, 260000, 265600, 269750, 276224, 332000, 345280, 415000, 416000, 431600, 520000, 531200, 539500, 664000, 674375, 690560, 830000, 863200, 1040000, 1079000, 1328000, 1348750, 1381120, 1660000, 1726400, 2080000, 2158000, 2656000, 2697500, 3320000, 3452800, 4316000, 5395000, 6640000, 6905600, 8632000, 10790000, 13280000, 17264000, 21580000, 34528000, 43160000, 86320000, 172640000]

約数ペア:

[(1, 172640000), (2, 86320000), (4, 43160000), (5, 34528000), (8, 21580000), (10, 17264000), (13, 13280000), (16, 10790000), (20, 8632000), (25, 6905600), (26, 6640000), (32, 5395000), (40, 4316000), (50, 3452800), (52, 3320000), (64, 2697500), (65, 2656000), (80, 2158000), (83, 2080000), (100, 1726400), (104, 1660000), (125, 1381120), (128, 1348750), (130, 1328000), (160, 1079000), (166, 1040000), (200, 863200), (208, 830000), (250, 690560), (256, 674375), (260, 664000), (320, 539500), (325, 531200), (332, 520000), (400, 431600), (415, 416000), (416, 415000), (500, 345280), (520, 332000), (625, 276224), (640, 269750), (650, 265600), (664, 260000), (800, 215800), (830, 208000), (832, 207500), (1000, 172640), (1040, 166000), (1079, 160000), (1250, 138112), (1280, 134875), (1300, 132800), (1328, 130000), (1600, 107900), (1625, 106240), (1660, 104000), (1664, 103750), (2000, 86320), (2075, 83200), (2080, 83000), (2158, 80000), (2500, 69056), (2600, 66400), (2656, 65000), (3200, 53950), (3250, 53120), (3320, 52000), (3328, 51875), (4000, 43160), (4150, 41600), (4160, 41500), (4316, 40000), (5000, 34528), (5200, 33200), (5312, 32500), (5395, 32000), (6400, 26975), (6500, 26560), (6640, 26000), (8000, 21580), (8125, 21248), (8300, 20800), (8320, 20750), (8632, 20000), (10000, 17264), (10375, 16640), (10400, 16600), (10624, 16250), (10790, 16000), (13000, 13280)]