77872000

素因数分解:

$2^7\times 5^3\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:217

約数の個数: 128

約数和(自身を含む): 201127680

約数和(自身を除く): 123255680

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, 628, 640, 775, 785, 800, 992, 1000, 1240, 1256, 1550, 1570, 1600, 1984, 2000, 2480, 2512, 3100, 3140, 3200, 3875, 3925, 3968, 4000, 4867, 4960, 5024, 6200, 6280, 7750, 7850, 8000, 9734, 9920, 10048, 12400, 12560, 15500, 15700, 16000, 19468, 19625, 19840, 20096, 24335, 24800, 25120, 31000, 31400, 38936, 39250, 48670, 49600, 50240, 62000, 62800, 77872, 78500, 97340, 99200, 100480, 121675, 124000, 125600, 155744, 157000, 194680, 243350, 248000, 251200, 311488, 314000, 389360, 486700, 496000, 502400, 608375, 622976, 628000, 778720, 973400, 1216750, 1256000, 1557440, 1946800, 2433500, 2512000, 3114880, 3893600, 4867000, 7787200, 9734000, 15574400, 19468000, 38936000, 77872000]

約数ペア:

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