128000400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9697}}^1$

素因数の和:9729

約数の個数: 120

約数和(自身を含む): 447349344

約数和(自身を除く): 319348944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 33, 40, 44, 48, 50, 55, 60, 66, 75, 80, 88, 100, 110, 120, 132, 150, 165, 176, 200, 220, 240, 264, 275, 300, 330, 400, 440, 528, 550, 600, 660, 825, 880, 1100, 1200, 1320, 1650, 2200, 2640, 3300, 4400, 6600, 9697, 13200, 19394, 29091, 38788, 48485, 58182, 77576, 96970, 106667, 116364, 145455, 155152, 193940, 213334, 232728, 242425, 290910, 320001, 387880, 426668, 465456, 484850, 533335, 581820, 640002, 727275, 775760, 853336, 969700, 1066670, 1163640, 1280004, 1454550, 1600005, 1706672, 1939400, 2133340, 2327280, 2560008, 2666675, 2909100, 3200010, 3878800, 4266680, 5120016, 5333350, 5818200, 6400020, 8000025, 8533360, 10666700, 11636400, 12800040, 16000050, 21333400, 25600080, 32000100, 42666800, 64000200, 128000400]

約数ペア:

[(1, 128000400), (2, 64000200), (3, 42666800), (4, 32000100), (5, 25600080), (6, 21333400), (8, 16000050), (10, 12800040), (11, 11636400), (12, 10666700), (15, 8533360), (16, 8000025), (20, 6400020), (22, 5818200), (24, 5333350), (25, 5120016), (30, 4266680), (33, 3878800), (40, 3200010), (44, 2909100), (48, 2666675), (50, 2560008), (55, 2327280), (60, 2133340), (66, 1939400), (75, 1706672), (80, 1600005), (88, 1454550), (100, 1280004), (110, 1163640), (120, 1066670), (132, 969700), (150, 853336), (165, 775760), (176, 727275), (200, 640002), (220, 581820), (240, 533335), (264, 484850), (275, 465456), (300, 426668), (330, 387880), (400, 320001), (440, 290910), (528, 242425), (550, 232728), (600, 213334), (660, 193940), (825, 155152), (880, 145455), (1100, 116364), (1200, 106667), (1320, 96970), (1650, 77576), (2200, 58182), (2640, 48485), (3300, 38788), (4400, 29091), (6600, 19394), (9697, 13200)]