398738560

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:331

約数の個数: 192

約数和(自身を含む): 1106985600

約数和(自身を除く): 708247040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 64, 76, 80, 88, 95, 110, 121, 128, 152, 160, 176, 190, 209, 220, 242, 271, 304, 320, 352, 380, 418, 440, 484, 542, 605, 608, 640, 704, 760, 836, 880, 968, 1045, 1084, 1210, 1216, 1355, 1408, 1520, 1672, 1760, 1936, 2090, 2168, 2299, 2420, 2432, 2710, 2981, 3040, 3344, 3520, 3872, 4180, 4336, 4598, 4840, 5149, 5420, 5962, 6080, 6688, 7040, 7744, 8360, 8672, 9196, 9680, 10298, 10840, 11495, 11924, 12160, 13376, 14905, 15488, 16720, 17344, 18392, 19360, 20596, 21680, 22990, 23848, 25745, 26752, 29810, 32791, 33440, 34688, 36784, 38720, 41192, 43360, 45980, 47696, 51490, 56639, 59620, 65582, 66880, 73568, 77440, 82384, 86720, 91960, 95392, 102980, 113278, 119240, 131164, 133760, 147136, 163955, 164768, 173440, 183920, 190784, 205960, 226556, 238480, 262328, 283195, 294272, 327910, 329536, 367840, 381568, 411920, 453112, 476960, 524656, 566390, 623029, 655820, 659072, 735680, 823840, 906224, 953920, 1049312, 1132780, 1246058, 1311640, 1471360, 1647680, 1812448, 1907840, 2098624, 2265560, 2492116, 2623280, 3115145, 3295360, 3624896, 4197248, 4531120, 4984232, 5246560, 6230290, 7249792, 9062240, 9968464, 10493120, 12460580, 18124480, 19936928, 20986240, 24921160, 36248960, 39873856, 49842320, 79747712, 99684640, 199369280, 398738560]

約数ペア:

[(1, 398738560), (2, 199369280), (4, 99684640), (5, 79747712), (8, 49842320), (10, 39873856), (11, 36248960), (16, 24921160), (19, 20986240), (20, 19936928), (22, 18124480), (32, 12460580), (38, 10493120), (40, 9968464), (44, 9062240), (55, 7249792), (64, 6230290), (76, 5246560), (80, 4984232), (88, 4531120), (95, 4197248), (110, 3624896), (121, 3295360), (128, 3115145), (152, 2623280), (160, 2492116), (176, 2265560), (190, 2098624), (209, 1907840), (220, 1812448), (242, 1647680), (271, 1471360), (304, 1311640), (320, 1246058), (352, 1132780), (380, 1049312), (418, 953920), (440, 906224), (484, 823840), (542, 735680), (605, 659072), (608, 655820), (640, 623029), (704, 566390), (760, 524656), (836, 476960), (880, 453112), (968, 411920), (1045, 381568), (1084, 367840), (1210, 329536), (1216, 327910), (1355, 294272), (1408, 283195), (1520, 262328), (1672, 238480), (1760, 226556), (1936, 205960), (2090, 190784), (2168, 183920), (2299, 173440), (2420, 164768), (2432, 163955), (2710, 147136), (2981, 133760), (3040, 131164), (3344, 119240), (3520, 113278), (3872, 102980), (4180, 95392), (4336, 91960), (4598, 86720), (4840, 82384), (5149, 77440), (5420, 73568), (5962, 66880), (6080, 65582), (6688, 59620), (7040, 56639), (7744, 51490), (8360, 47696), (8672, 45980), (9196, 43360), (9680, 41192), (10298, 38720), (10840, 36784), (11495, 34688), (11924, 33440), (12160, 32791), (13376, 29810), (14905, 26752), (15488, 25745), (16720, 23848), (17344, 22990), (18392, 21680), (19360, 20596)]