30256000

素因数分解:

$2^7\times 5^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:121

約数の個数: 128

約数和(自身を含む): 78923520

約数和(自身を除く): 48667520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 61, 62, 64, 80, 100, 122, 124, 125, 128, 155, 160, 200, 244, 248, 250, 305, 310, 320, 400, 488, 496, 500, 610, 620, 640, 775, 800, 976, 992, 1000, 1220, 1240, 1525, 1550, 1600, 1891, 1952, 1984, 2000, 2440, 2480, 3050, 3100, 3200, 3782, 3875, 3904, 3968, 4000, 4880, 4960, 6100, 6200, 7564, 7625, 7750, 7808, 8000, 9455, 9760, 9920, 12200, 12400, 15128, 15250, 15500, 16000, 18910, 19520, 19840, 24400, 24800, 30256, 30500, 31000, 37820, 39040, 47275, 48800, 49600, 60512, 61000, 62000, 75640, 94550, 97600, 99200, 121024, 122000, 124000, 151280, 189100, 195200, 236375, 242048, 244000, 248000, 302560, 378200, 472750, 488000, 496000, 605120, 756400, 945500, 976000, 1210240, 1512800, 1891000, 3025600, 3782000, 6051200, 7564000, 15128000, 30256000]

約数ペア:

[(1, 30256000), (2, 15128000), (4, 7564000), (5, 6051200), (8, 3782000), (10, 3025600), (16, 1891000), (20, 1512800), (25, 1210240), (31, 976000), (32, 945500), (40, 756400), (50, 605120), (61, 496000), (62, 488000), (64, 472750), (80, 378200), (100, 302560), (122, 248000), (124, 244000), (125, 242048), (128, 236375), (155, 195200), (160, 189100), (200, 151280), (244, 124000), (248, 122000), (250, 121024), (305, 99200), (310, 97600), (320, 94550), (400, 75640), (488, 62000), (496, 61000), (500, 60512), (610, 49600), (620, 48800), (640, 47275), (775, 39040), (800, 37820), (976, 31000), (992, 30500), (1000, 30256), (1220, 24800), (1240, 24400), (1525, 19840), (1550, 19520), (1600, 18910), (1891, 16000), (1952, 15500), (1984, 15250), (2000, 15128), (2440, 12400), (2480, 12200), (3050, 9920), (3100, 9760), (3200, 9455), (3782, 8000), (3875, 7808), (3904, 7750), (3968, 7625), (4000, 7564), (4880, 6200), (4960, 6100)]