1909382960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{20593}}^1$

素因数の和:20686

約数の個数: 80

約数和(自身を含む): 4749800160

約数和(自身を除く): 2840417200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 61, 76, 80, 95, 122, 152, 190, 244, 304, 305, 380, 488, 610, 760, 976, 1159, 1220, 1520, 2318, 2440, 4636, 4880, 5795, 9272, 11590, 18544, 20593, 23180, 41186, 46360, 82372, 92720, 102965, 164744, 205930, 329488, 391267, 411860, 782534, 823720, 1256173, 1565068, 1647440, 1956335, 2512346, 3130136, 3912670, 5024692, 6260272, 6280865, 7825340, 10049384, 12561730, 15650680, 20098768, 23867287, 25123460, 31301360, 47734574, 50246920, 95469148, 100493840, 119336435, 190938296, 238672870, 381876592, 477345740, 954691480, 1909382960]

約数ペア:

[(1, 1909382960), (2, 954691480), (4, 477345740), (5, 381876592), (8, 238672870), (10, 190938296), (16, 119336435), (19, 100493840), (20, 95469148), (38, 50246920), (40, 47734574), (61, 31301360), (76, 25123460), (80, 23867287), (95, 20098768), (122, 15650680), (152, 12561730), (190, 10049384), (244, 7825340), (304, 6280865), (305, 6260272), (380, 5024692), (488, 3912670), (610, 3130136), (760, 2512346), (976, 1956335), (1159, 1647440), (1220, 1565068), (1520, 1256173), (2318, 823720), (2440, 782534), (4636, 411860), (4880, 391267), (5795, 329488), (9272, 205930), (11590, 164744), (18544, 102965), (20593, 92720), (23180, 82372), (41186, 46360)]