389360000

素因数分解:

$2^7\times 5^4\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 160

約数和(自身を含む): 1006927680

約数和(自身を除く): 617567680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 128, 155, 157, 160, 200, 248, 250, 310, 314, 320, 400, 496, 500, 620, 625, 628, 640, 775, 785, 800, 992, 1000, 1240, 1250, 1256, 1550, 1570, 1600, 1984, 2000, 2480, 2500, 2512, 3100, 3140, 3200, 3875, 3925, 3968, 4000, 4867, 4960, 5000, 5024, 6200, 6280, 7750, 7850, 8000, 9734, 9920, 10000, 10048, 12400, 12560, 15500, 15700, 16000, 19375, 19468, 19625, 19840, 20000, 20096, 24335, 24800, 25120, 31000, 31400, 38750, 38936, 39250, 40000, 48670, 49600, 50240, 62000, 62800, 77500, 77872, 78500, 80000, 97340, 98125, 99200, 100480, 121675, 124000, 125600, 155000, 155744, 157000, 194680, 196250, 243350, 248000, 251200, 310000, 311488, 314000, 389360, 392500, 486700, 496000, 502400, 608375, 620000, 622976, 628000, 778720, 785000, 973400, 1216750, 1240000, 1256000, 1557440, 1570000, 1946800, 2433500, 2480000, 2512000, 3041875, 3114880, 3140000, 3893600, 4867000, 6083750, 6280000, 7787200, 9734000, 12167500, 12560000, 15574400, 19468000, 24335000, 38936000, 48670000, 77872000, 97340000, 194680000, 389360000]

約数ペア:

[(1, 389360000), (2, 194680000), (4, 97340000), (5, 77872000), (8, 48670000), (10, 38936000), (16, 24335000), (20, 19468000), (25, 15574400), (31, 12560000), (32, 12167500), (40, 9734000), (50, 7787200), (62, 6280000), (64, 6083750), (80, 4867000), (100, 3893600), (124, 3140000), (125, 3114880), (128, 3041875), (155, 2512000), (157, 2480000), (160, 2433500), (200, 1946800), (248, 1570000), (250, 1557440), (310, 1256000), (314, 1240000), (320, 1216750), (400, 973400), (496, 785000), (500, 778720), (620, 628000), (625, 622976), (628, 620000), (640, 608375), (775, 502400), (785, 496000), (800, 486700), (992, 392500), (1000, 389360), (1240, 314000), (1250, 311488), (1256, 310000), (1550, 251200), (1570, 248000), (1600, 243350), (1984, 196250), (2000, 194680), (2480, 157000), (2500, 155744), (2512, 155000), (3100, 125600), (3140, 124000), (3200, 121675), (3875, 100480), (3925, 99200), (3968, 98125), (4000, 97340), (4867, 80000), (4960, 78500), (5000, 77872), (5024, 77500), (6200, 62800), (6280, 62000), (7750, 50240), (7850, 49600), (8000, 48670), (9734, 40000), (9920, 39250), (10000, 38936), (10048, 38750), (12400, 31400), (12560, 31000), (15500, 25120), (15700, 24800), (16000, 24335), (19375, 20096), (19468, 20000), (19625, 19840)]