64879600

素因数分解:

$2^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{2659}}^1$

素因数の和:2738

約数の個数: 60

約数和(自身を含む): 158488120

約数和(自身を除く): 93608520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 200, 244, 305, 400, 488, 610, 976, 1220, 1525, 2440, 2659, 3050, 4880, 5318, 6100, 10636, 12200, 13295, 21272, 24400, 26590, 42544, 53180, 66475, 106360, 132950, 162199, 212720, 265900, 324398, 531800, 648796, 810995, 1063600, 1297592, 1621990, 2595184, 3243980, 4054975, 6487960, 8109950, 12975920, 16219900, 32439800, 64879600]

約数ペア:

[(1, 64879600), (2, 32439800), (4, 16219900), (5, 12975920), (8, 8109950), (10, 6487960), (16, 4054975), (20, 3243980), (25, 2595184), (40, 1621990), (50, 1297592), (61, 1063600), (80, 810995), (100, 648796), (122, 531800), (200, 324398), (244, 265900), (305, 212720), (400, 162199), (488, 132950), (610, 106360), (976, 66475), (1220, 53180), (1525, 42544), (2440, 26590), (2659, 24400), (3050, 21272), (4880, 13295), (5318, 12200), (6100, 10636)]