19940800

素因数分解:

$2^6\times 5^2\times {\mathrm{11}}^2\times {\mathrm{103}}^1$

素因数の和:147

約数の個数: 126

約数和(自身を含む): 54456584

約数和(自身を除く): 34515784

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 103, 110, 121, 160, 176, 200, 206, 220, 242, 275, 320, 352, 400, 412, 440, 484, 515, 550, 605, 704, 800, 824, 880, 968, 1030, 1100, 1133, 1210, 1600, 1648, 1760, 1936, 2060, 2200, 2266, 2420, 2575, 3025, 3296, 3520, 3872, 4120, 4400, 4532, 4840, 5150, 5665, 6050, 6592, 7744, 8240, 8800, 9064, 9680, 10300, 11330, 12100, 12463, 16480, 17600, 18128, 19360, 20600, 22660, 24200, 24926, 28325, 32960, 36256, 38720, 41200, 45320, 48400, 49852, 56650, 62315, 72512, 82400, 90640, 96800, 99704, 113300, 124630, 164800, 181280, 193600, 199408, 226600, 249260, 311575, 362560, 398816, 453200, 498520, 623150, 797632, 906400, 997040, 1246300, 1812800, 1994080, 2492600, 3988160, 4985200, 9970400, 19940800]

約数ペア:

[(1, 19940800), (2, 9970400), (4, 4985200), (5, 3988160), (8, 2492600), (10, 1994080), (11, 1812800), (16, 1246300), (20, 997040), (22, 906400), (25, 797632), (32, 623150), (40, 498520), (44, 453200), (50, 398816), (55, 362560), (64, 311575), (80, 249260), (88, 226600), (100, 199408), (103, 193600), (110, 181280), (121, 164800), (160, 124630), (176, 113300), (200, 99704), (206, 96800), (220, 90640), (242, 82400), (275, 72512), (320, 62315), (352, 56650), (400, 49852), (412, 48400), (440, 45320), (484, 41200), (515, 38720), (550, 36256), (605, 32960), (704, 28325), (800, 24926), (824, 24200), (880, 22660), (968, 20600), (1030, 19360), (1100, 18128), (1133, 17600), (1210, 16480), (1600, 12463), (1648, 12100), (1760, 11330), (1936, 10300), (2060, 9680), (2200, 9064), (2266, 8800), (2420, 8240), (2575, 7744), (3025, 6592), (3296, 6050), (3520, 5665), (3872, 5150), (4120, 4840), (4400, 4532)]