51281000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{2699}}^1$

素因数の和:2739

約数の個数: 64

約数和(自身を含む): 126360000

約数和(自身を除く): 75079000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 1000, 1900, 2375, 2699, 3800, 4750, 5398, 9500, 10796, 13495, 19000, 21592, 26990, 51281, 53980, 67475, 102562, 107960, 134950, 205124, 256405, 269900, 337375, 410248, 512810, 539800, 674750, 1025620, 1282025, 1349500, 2051240, 2564050, 2699000, 5128100, 6410125, 10256200, 12820250, 25640500, 51281000]

約数ペア:

[(1, 51281000), (2, 25640500), (4, 12820250), (5, 10256200), (8, 6410125), (10, 5128100), (19, 2699000), (20, 2564050), (25, 2051240), (38, 1349500), (40, 1282025), (50, 1025620), (76, 674750), (95, 539800), (100, 512810), (125, 410248), (152, 337375), (190, 269900), (200, 256405), (250, 205124), (380, 134950), (475, 107960), (500, 102562), (760, 67475), (950, 53980), (1000, 51281), (1900, 26990), (2375, 21592), (2699, 19000), (3800, 13495), (4750, 10796), (5398, 9500)]