661400880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{17117}}^1$

素因数の和:17163

約数の個数: 160

約数和(自身を含む): 2445272064

約数和(自身を除く): 1783871184

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 105, 112, 115, 120, 138, 140, 161, 168, 184, 210, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 483, 552, 560, 644, 690, 805, 840, 920, 966, 1104, 1288, 1380, 1610, 1680, 1840, 1932, 2415, 2576, 2760, 3220, 3864, 4830, 5520, 6440, 7728, 9660, 12880, 17117, 19320, 34234, 38640, 51351, 68468, 85585, 102702, 119819, 136936, 171170, 205404, 239638, 256755, 273872, 342340, 359457, 393691, 410808, 479276, 513510, 599095, 684680, 718914, 787382, 821616, 958552, 1027020, 1181073, 1198190, 1369360, 1437828, 1574764, 1797285, 1917104, 1968455, 2054040, 2362146, 2396380, 2755837, 2875656, 3149528, 3594570, 3936910, 4108080, 4724292, 4792760, 5511674, 5751312, 5905365, 6299056, 7189140, 7873820, 8267511, 9448584, 9585520, 11023348, 11810730, 13779185, 14378280, 15747640, 16535022, 18897168, 22046696, 23621460, 27558370, 28756560, 31495280, 33070044, 41337555, 44093392, 47242920, 55116740, 66140088, 82675110, 94485840, 110233480, 132280176, 165350220, 220466960, 330700440, 661400880]

約数ペア:

[(1, 661400880), (2, 330700440), (3, 220466960), (4, 165350220), (5, 132280176), (6, 110233480), (7, 94485840), (8, 82675110), (10, 66140088), (12, 55116740), (14, 47242920), (15, 44093392), (16, 41337555), (20, 33070044), (21, 31495280), (23, 28756560), (24, 27558370), (28, 23621460), (30, 22046696), (35, 18897168), (40, 16535022), (42, 15747640), (46, 14378280), (48, 13779185), (56, 11810730), (60, 11023348), (69, 9585520), (70, 9448584), (80, 8267511), (84, 7873820), (92, 7189140), (105, 6299056), (112, 5905365), (115, 5751312), (120, 5511674), (138, 4792760), (140, 4724292), (161, 4108080), (168, 3936910), (184, 3594570), (210, 3149528), (230, 2875656), (240, 2755837), (276, 2396380), (280, 2362146), (322, 2054040), (336, 1968455), (345, 1917104), (368, 1797285), (420, 1574764), (460, 1437828), (483, 1369360), (552, 1198190), (560, 1181073), (644, 1027020), (690, 958552), (805, 821616), (840, 787382), (920, 718914), (966, 684680), (1104, 599095), (1288, 513510), (1380, 479276), (1610, 410808), (1680, 393691), (1840, 359457), (1932, 342340), (2415, 273872), (2576, 256755), (2760, 239638), (3220, 205404), (3864, 171170), (4830, 136936), (5520, 119819), (6440, 102702), (7728, 85585), (9660, 68468), (12880, 51351), (17117, 38640), (19320, 34234)]