12975920

素因数分解:

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

素因数の和:2733

約数の個数: 40

約数和(自身を含む): 30675120

約数和(自身を除く): 17699200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 2659, 4880, 5318, 10636, 13295, 21272, 26590, 42544, 53180, 106360, 162199, 212720, 324398, 648796, 810995, 1297592, 1621990, 2595184, 3243980, 6487960, 12975920]

約数ペア:

[(1, 12975920), (2, 6487960), (4, 3243980), (5, 2595184), (8, 1621990), (10, 1297592), (16, 810995), (20, 648796), (40, 324398), (61, 212720), (80, 162199), (122, 106360), (244, 53180), (305, 42544), (488, 26590), (610, 21272), (976, 13295), (1220, 10636), (2440, 5318), (2659, 4880)]