48980000

素因数分解:

$2^5\times 5^4\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 120

約数和(自身を含む): 125959680

約数和(自身を除く): 76979680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 79, 80, 100, 124, 125, 155, 158, 160, 200, 248, 250, 310, 316, 395, 400, 496, 500, 620, 625, 632, 775, 790, 800, 992, 1000, 1240, 1250, 1264, 1550, 1580, 1975, 2000, 2449, 2480, 2500, 2528, 3100, 3160, 3875, 3950, 4000, 4898, 4960, 5000, 6200, 6320, 7750, 7900, 9796, 9875, 10000, 12245, 12400, 12640, 15500, 15800, 19375, 19592, 19750, 20000, 24490, 24800, 31000, 31600, 38750, 39184, 39500, 48980, 49375, 61225, 62000, 63200, 77500, 78368, 79000, 97960, 98750, 122450, 124000, 155000, 158000, 195920, 197500, 244900, 306125, 310000, 316000, 391840, 395000, 489800, 612250, 620000, 790000, 979600, 1224500, 1530625, 1580000, 1959200, 2449000, 3061250, 4898000, 6122500, 9796000, 12245000, 24490000, 48980000]

約数ペア:

[(1, 48980000), (2, 24490000), (4, 12245000), (5, 9796000), (8, 6122500), (10, 4898000), (16, 3061250), (20, 2449000), (25, 1959200), (31, 1580000), (32, 1530625), (40, 1224500), (50, 979600), (62, 790000), (79, 620000), (80, 612250), (100, 489800), (124, 395000), (125, 391840), (155, 316000), (158, 310000), (160, 306125), (200, 244900), (248, 197500), (250, 195920), (310, 158000), (316, 155000), (395, 124000), (400, 122450), (496, 98750), (500, 97960), (620, 79000), (625, 78368), (632, 77500), (775, 63200), (790, 62000), (800, 61225), (992, 49375), (1000, 48980), (1240, 39500), (1250, 39184), (1264, 38750), (1550, 31600), (1580, 31000), (1975, 24800), (2000, 24490), (2449, 20000), (2480, 19750), (2500, 19592), (2528, 19375), (3100, 15800), (3160, 15500), (3875, 12640), (3950, 12400), (4000, 12245), (4898, 10000), (4960, 9875), (5000, 9796), (6200, 7900), (6320, 7750)]