161918988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:468

約数の個数: 192

約数和(自身を含む): 518676480

約数和(自身を除く): 356757492

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 19, 21, 22, 23, 28, 33, 38, 42, 44, 46, 57, 66, 69, 76, 77, 84, 92, 114, 132, 133, 138, 154, 161, 209, 228, 231, 253, 266, 276, 308, 322, 399, 401, 418, 437, 462, 483, 506, 532, 627, 644, 759, 798, 802, 836, 874, 924, 966, 1012, 1203, 1254, 1311, 1463, 1518, 1596, 1604, 1748, 1771, 1932, 2406, 2508, 2622, 2807, 2926, 3036, 3059, 3542, 4389, 4411, 4807, 4812, 5244, 5313, 5614, 5852, 6118, 7084, 7619, 8421, 8778, 8822, 9177, 9223, 9614, 10626, 11228, 12236, 13233, 14421, 15238, 16842, 17556, 17644, 18354, 18446, 19228, 21252, 22857, 26466, 27669, 28842, 30476, 30877, 33649, 33684, 36708, 36892, 45714, 52932, 53333, 55338, 57684, 61754, 64561, 67298, 83809, 91428, 92631, 100947, 101453, 106666, 110676, 123508, 129122, 134596, 159999, 167618, 175237, 185262, 193683, 201894, 202906, 213332, 251427, 258244, 304359, 319998, 335236, 350474, 370524, 387366, 403788, 405812, 502854, 525711, 586663, 608718, 639996, 700948, 710171, 774732, 1005708, 1051422, 1173326, 1217436, 1226659, 1420342, 1759989, 1927607, 2102844, 2130513, 2346652, 2453318, 2840684, 3519978, 3679977, 3855214, 4261026, 4906636, 5782821, 7039956, 7359954, 7710428, 8522052, 11565642, 13493249, 14719908, 23131284, 26986498, 40479747, 53972996, 80959494, 161918988]

約数ペア:

[(1, 161918988), (2, 80959494), (3, 53972996), (4, 40479747), (6, 26986498), (7, 23131284), (11, 14719908), (12, 13493249), (14, 11565642), (19, 8522052), (21, 7710428), (22, 7359954), (23, 7039956), (28, 5782821), (33, 4906636), (38, 4261026), (42, 3855214), (44, 3679977), (46, 3519978), (57, 2840684), (66, 2453318), (69, 2346652), (76, 2130513), (77, 2102844), (84, 1927607), (92, 1759989), (114, 1420342), (132, 1226659), (133, 1217436), (138, 1173326), (154, 1051422), (161, 1005708), (209, 774732), (228, 710171), (231, 700948), (253, 639996), (266, 608718), (276, 586663), (308, 525711), (322, 502854), (399, 405812), (401, 403788), (418, 387366), (437, 370524), (462, 350474), (483, 335236), (506, 319998), (532, 304359), (627, 258244), (644, 251427), (759, 213332), (798, 202906), (802, 201894), (836, 193683), (874, 185262), (924, 175237), (966, 167618), (1012, 159999), (1203, 134596), (1254, 129122), (1311, 123508), (1463, 110676), (1518, 106666), (1596, 101453), (1604, 100947), (1748, 92631), (1771, 91428), (1932, 83809), (2406, 67298), (2508, 64561), (2622, 61754), (2807, 57684), (2926, 55338), (3036, 53333), (3059, 52932), (3542, 45714), (4389, 36892), (4411, 36708), (4807, 33684), (4812, 33649), (5244, 30877), (5313, 30476), (5614, 28842), (5852, 27669), (6118, 26466), (7084, 22857), (7619, 21252), (8421, 19228), (8778, 18446), (8822, 18354), (9177, 17644), (9223, 17556), (9614, 16842), (10626, 15238), (11228, 14421), (12236, 13233)]