31905280

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1$

素因数の和:148

約数の個数: 120

約数和(自身を含む): 84900816

約数和(自身を除く): 52995536

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 103, 110, 121, 128, 160, 176, 206, 220, 242, 256, 320, 352, 412, 440, 484, 512, 515, 605, 640, 704, 824, 880, 968, 1030, 1133, 1210, 1280, 1408, 1648, 1760, 1936, 2060, 2266, 2420, 2560, 2816, 3296, 3520, 3872, 4120, 4532, 4840, 5632, 5665, 6592, 7040, 7744, 8240, 9064, 9680, 11330, 12463, 13184, 14080, 15488, 16480, 18128, 19360, 22660, 24926, 26368, 28160, 30976, 32960, 36256, 38720, 45320, 49852, 52736, 61952, 62315, 65920, 72512, 77440, 90640, 99704, 124630, 131840, 145024, 154880, 181280, 199408, 249260, 263680, 290048, 309760, 362560, 398816, 498520, 580096, 725120, 797632, 997040, 1450240, 1595264, 1994080, 2900480, 3190528, 3988160, 6381056, 7976320, 15952640, 31905280]

約数ペア:

[(1, 31905280), (2, 15952640), (4, 7976320), (5, 6381056), (8, 3988160), (10, 3190528), (11, 2900480), (16, 1994080), (20, 1595264), (22, 1450240), (32, 997040), (40, 797632), (44, 725120), (55, 580096), (64, 498520), (80, 398816), (88, 362560), (103, 309760), (110, 290048), (121, 263680), (128, 249260), (160, 199408), (176, 181280), (206, 154880), (220, 145024), (242, 131840), (256, 124630), (320, 99704), (352, 90640), (412, 77440), (440, 72512), (484, 65920), (512, 62315), (515, 61952), (605, 52736), (640, 49852), (704, 45320), (824, 38720), (880, 36256), (968, 32960), (1030, 30976), (1133, 28160), (1210, 26368), (1280, 24926), (1408, 22660), (1648, 19360), (1760, 18128), (1936, 16480), (2060, 15488), (2266, 14080), (2420, 13184), (2560, 12463), (2816, 11330), (3296, 9680), (3520, 9064), (3872, 8240), (4120, 7744), (4532, 7040), (4840, 6592), (5632, 5665)]