172564120

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{359}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 397742400

約数和(自身を除く): 225178280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 197, 244, 305, 359, 394, 488, 610, 718, 788, 985, 1220, 1436, 1576, 1795, 1970, 2440, 2872, 3590, 3940, 7180, 7880, 12017, 14360, 21899, 24034, 43798, 48068, 60085, 70723, 87596, 96136, 109495, 120170, 141446, 175192, 218990, 240340, 282892, 353615, 437980, 480680, 565784, 707230, 875960, 1414460, 2828920, 4314103, 8628206, 17256412, 21570515, 34512824, 43141030, 86282060, 172564120]

約数ペア:

[(1, 172564120), (2, 86282060), (4, 43141030), (5, 34512824), (8, 21570515), (10, 17256412), (20, 8628206), (40, 4314103), (61, 2828920), (122, 1414460), (197, 875960), (244, 707230), (305, 565784), (359, 480680), (394, 437980), (488, 353615), (610, 282892), (718, 240340), (788, 218990), (985, 175192), (1220, 141446), (1436, 120170), (1576, 109495), (1795, 96136), (1970, 87596), (2440, 70723), (2872, 60085), (3590, 48068), (3940, 43798), (7180, 24034), (7880, 21899), (12017, 14360)]