389619928

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:544

約数の個数: 64

約数和(自身を含む): 789264000

約数和(自身を除く): 399644072

約数列:

[1, 2, 4, 8, 19, 38, 76, 83, 89, 152, 166, 178, 332, 347, 356, 664, 694, 712, 1388, 1577, 1691, 2776, 3154, 3382, 6308, 6593, 6764, 7387, 12616, 13186, 13528, 14774, 26372, 28801, 29548, 30883, 52744, 57602, 59096, 61766, 115204, 123532, 140353, 230408, 247064, 280706, 547219, 561412, 586777, 1094438, 1122824, 1173554, 2188876, 2347108, 2563289, 4377752, 4694216, 5126578, 10253156, 20506312, 48702491, 97404982, 194809964, 389619928]

約数ペア:

[(1, 389619928), (2, 194809964), (4, 97404982), (8, 48702491), (19, 20506312), (38, 10253156), (76, 5126578), (83, 4694216), (89, 4377752), (152, 2563289), (166, 2347108), (178, 2188876), (332, 1173554), (347, 1122824), (356, 1094438), (664, 586777), (694, 561412), (712, 547219), (1388, 280706), (1577, 247064), (1691, 230408), (2776, 140353), (3154, 123532), (3382, 115204), (6308, 61766), (6593, 59096), (6764, 57602), (7387, 52744), (12616, 30883), (13186, 29548), (13528, 28801), (14774, 26372)]