12845080

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 30209760

約数和(自身を除く): 17364680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 73, 83, 106, 146, 166, 212, 265, 292, 332, 365, 415, 424, 530, 584, 664, 730, 830, 1060, 1460, 1660, 2120, 2920, 3320, 3869, 4399, 6059, 7738, 8798, 12118, 15476, 17596, 19345, 21995, 24236, 30295, 30952, 35192, 38690, 43990, 48472, 60590, 77380, 87980, 121180, 154760, 175960, 242360, 321127, 642254, 1284508, 1605635, 2569016, 3211270, 6422540, 12845080]

約数ペア:

[(1, 12845080), (2, 6422540), (4, 3211270), (5, 2569016), (8, 1605635), (10, 1284508), (20, 642254), (40, 321127), (53, 242360), (73, 175960), (83, 154760), (106, 121180), (146, 87980), (166, 77380), (212, 60590), (265, 48472), (292, 43990), (332, 38690), (365, 35192), (415, 30952), (424, 30295), (530, 24236), (584, 21995), (664, 19345), (730, 17596), (830, 15476), (1060, 12118), (1460, 8798), (1660, 7738), (2120, 6059), (2920, 4399), (3320, 3869)]