65312000

素因数分解:

$2^8\times 5^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:201

約数の個数: 144

約数和(自身を含む): 176331792

約数和(自身を除く): 111019792

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 128, 130, 157, 160, 200, 208, 250, 256, 260, 314, 320, 325, 400, 416, 500, 520, 628, 640, 650, 785, 800, 832, 1000, 1040, 1256, 1280, 1300, 1570, 1600, 1625, 1664, 2000, 2041, 2080, 2512, 2600, 3140, 3200, 3250, 3328, 3925, 4000, 4082, 4160, 5024, 5200, 6280, 6400, 6500, 7850, 8000, 8164, 8320, 10048, 10205, 10400, 12560, 13000, 15700, 16000, 16328, 16640, 19625, 20096, 20410, 20800, 25120, 26000, 31400, 32000, 32656, 39250, 40192, 40820, 41600, 50240, 51025, 52000, 62800, 65312, 78500, 81640, 83200, 100480, 102050, 104000, 125600, 130624, 157000, 163280, 200960, 204100, 208000, 251200, 255125, 261248, 314000, 326560, 408200, 416000, 502400, 510250, 522496, 628000, 653120, 816400, 1004800, 1020500, 1256000, 1306240, 1632800, 2041000, 2512000, 2612480, 3265600, 4082000, 5024000, 6531200, 8164000, 13062400, 16328000, 32656000, 65312000]

約数ペア:

[(1, 65312000), (2, 32656000), (4, 16328000), (5, 13062400), (8, 8164000), (10, 6531200), (13, 5024000), (16, 4082000), (20, 3265600), (25, 2612480), (26, 2512000), (32, 2041000), (40, 1632800), (50, 1306240), (52, 1256000), (64, 1020500), (65, 1004800), (80, 816400), (100, 653120), (104, 628000), (125, 522496), (128, 510250), (130, 502400), (157, 416000), (160, 408200), (200, 326560), (208, 314000), (250, 261248), (256, 255125), (260, 251200), (314, 208000), (320, 204100), (325, 200960), (400, 163280), (416, 157000), (500, 130624), (520, 125600), (628, 104000), (640, 102050), (650, 100480), (785, 83200), (800, 81640), (832, 78500), (1000, 65312), (1040, 62800), (1256, 52000), (1280, 51025), (1300, 50240), (1570, 41600), (1600, 40820), (1625, 40192), (1664, 39250), (2000, 32656), (2041, 32000), (2080, 31400), (2512, 26000), (2600, 25120), (3140, 20800), (3200, 20410), (3250, 20096), (3328, 19625), (3925, 16640), (4000, 16328), (4082, 16000), (4160, 15700), (5024, 13000), (5200, 12560), (6280, 10400), (6400, 10205), (6500, 10048), (7850, 8320), (8000, 8164)]