178536280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{659}}^1$

素因数の和:1204

約数の個数: 64

約数和(自身を含む): 434095200

約数和(自身を除く): 255558920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 521, 659, 1042, 1318, 2084, 2605, 2636, 3295, 4168, 5210, 5272, 6590, 6773, 8567, 10420, 13180, 13546, 17134, 20840, 26360, 27092, 33865, 34268, 42835, 54184, 67730, 68536, 85670, 135460, 171340, 270920, 342680, 343339, 686678, 1373356, 1716695, 2746712, 3433390, 4463407, 6866780, 8926814, 13733560, 17853628, 22317035, 35707256, 44634070, 89268140, 178536280]

約数ペア:

[(1, 178536280), (2, 89268140), (4, 44634070), (5, 35707256), (8, 22317035), (10, 17853628), (13, 13733560), (20, 8926814), (26, 6866780), (40, 4463407), (52, 3433390), (65, 2746712), (104, 1716695), (130, 1373356), (260, 686678), (520, 343339), (521, 342680), (659, 270920), (1042, 171340), (1318, 135460), (2084, 85670), (2605, 68536), (2636, 67730), (3295, 54184), (4168, 42835), (5210, 34268), (5272, 33865), (6590, 27092), (6773, 26360), (8567, 20840), (10420, 17134), (13180, 13546)]