213280000

素因数分解:

$2^8\times 5^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:110

約数の個数: 180

約数和(自身を含む): 561920128

約数和(自身を除く): 348640128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 43, 50, 62, 64, 80, 86, 100, 124, 125, 128, 155, 160, 172, 200, 215, 248, 250, 256, 310, 320, 344, 400, 430, 496, 500, 620, 625, 640, 688, 775, 800, 860, 992, 1000, 1075, 1240, 1250, 1280, 1333, 1376, 1550, 1600, 1720, 1984, 2000, 2150, 2480, 2500, 2666, 2752, 3100, 3200, 3440, 3875, 3968, 4000, 4300, 4960, 5000, 5332, 5375, 5504, 6200, 6400, 6665, 6880, 7750, 7936, 8000, 8600, 9920, 10000, 10664, 10750, 11008, 12400, 13330, 13760, 15500, 16000, 17200, 19375, 19840, 20000, 21328, 21500, 24800, 26660, 26875, 27520, 31000, 32000, 33325, 34400, 38750, 39680, 40000, 42656, 43000, 49600, 53320, 53750, 55040, 62000, 66650, 68800, 77500, 80000, 85312, 86000, 99200, 106640, 107500, 124000, 133300, 137600, 155000, 160000, 166625, 170624, 172000, 198400, 213280, 215000, 248000, 266600, 275200, 310000, 333250, 341248, 344000, 426560, 430000, 496000, 533200, 620000, 666500, 688000, 833125, 853120, 860000, 992000, 1066400, 1240000, 1333000, 1376000, 1666250, 1706240, 1720000, 2132800, 2480000, 2666000, 3332500, 3440000, 4265600, 4960000, 5332000, 6665000, 6880000, 8531200, 10664000, 13330000, 21328000, 26660000, 42656000, 53320000, 106640000, 213280000]

約数ペア:

[(1, 213280000), (2, 106640000), (4, 53320000), (5, 42656000), (8, 26660000), (10, 21328000), (16, 13330000), (20, 10664000), (25, 8531200), (31, 6880000), (32, 6665000), (40, 5332000), (43, 4960000), (50, 4265600), (62, 3440000), (64, 3332500), (80, 2666000), (86, 2480000), (100, 2132800), (124, 1720000), (125, 1706240), (128, 1666250), (155, 1376000), (160, 1333000), (172, 1240000), (200, 1066400), (215, 992000), (248, 860000), (250, 853120), (256, 833125), (310, 688000), (320, 666500), (344, 620000), (400, 533200), (430, 496000), (496, 430000), (500, 426560), (620, 344000), (625, 341248), (640, 333250), (688, 310000), (775, 275200), (800, 266600), (860, 248000), (992, 215000), (1000, 213280), (1075, 198400), (1240, 172000), (1250, 170624), (1280, 166625), (1333, 160000), (1376, 155000), (1550, 137600), (1600, 133300), (1720, 124000), (1984, 107500), (2000, 106640), (2150, 99200), (2480, 86000), (2500, 85312), (2666, 80000), (2752, 77500), (3100, 68800), (3200, 66650), (3440, 62000), (3875, 55040), (3968, 53750), (4000, 53320), (4300, 49600), (4960, 43000), (5000, 42656), (5332, 40000), (5375, 39680), (5504, 38750), (6200, 34400), (6400, 33325), (6665, 32000), (6880, 31000), (7750, 27520), (7936, 26875), (8000, 26660), (8600, 24800), (9920, 21500), (10000, 21328), (10664, 20000), (10750, 19840), (11008, 19375), (12400, 17200), (13330, 16000), (13760, 15500)]