217849060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{211}}^1$

素因数の和:282

約数の個数: 144

約数和(自身を含む): 569927232

約数和(自身を除く): 352078172

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 26, 38, 44, 52, 55, 65, 76, 95, 110, 130, 143, 190, 209, 211, 220, 247, 260, 286, 361, 380, 418, 422, 494, 572, 715, 722, 836, 844, 988, 1045, 1055, 1235, 1430, 1444, 1805, 2090, 2110, 2321, 2470, 2717, 2743, 2860, 3610, 3971, 4009, 4180, 4220, 4642, 4693, 4940, 5434, 5486, 7220, 7942, 8018, 9284, 9386, 10868, 10972, 11605, 13585, 13715, 15884, 16036, 18772, 19855, 20045, 23210, 23465, 27170, 27430, 30173, 39710, 40090, 44099, 46420, 46930, 51623, 52117, 54340, 54860, 60346, 76171, 79420, 80180, 88198, 93860, 103246, 104234, 120692, 150865, 152342, 176396, 206492, 208468, 220495, 258115, 260585, 301730, 304684, 380855, 440990, 516230, 521170, 573287, 603460, 761710, 837881, 881980, 990223, 1032460, 1042340, 1146574, 1523420, 1675762, 1980446, 2293148, 2866435, 3351524, 3960892, 4189405, 4951115, 5732870, 8378810, 9902230, 10892453, 11465740, 16757620, 19804460, 21784906, 43569812, 54462265, 108924530, 217849060]

約数ペア:

[(1, 217849060), (2, 108924530), (4, 54462265), (5, 43569812), (10, 21784906), (11, 19804460), (13, 16757620), (19, 11465740), (20, 10892453), (22, 9902230), (26, 8378810), (38, 5732870), (44, 4951115), (52, 4189405), (55, 3960892), (65, 3351524), (76, 2866435), (95, 2293148), (110, 1980446), (130, 1675762), (143, 1523420), (190, 1146574), (209, 1042340), (211, 1032460), (220, 990223), (247, 881980), (260, 837881), (286, 761710), (361, 603460), (380, 573287), (418, 521170), (422, 516230), (494, 440990), (572, 380855), (715, 304684), (722, 301730), (836, 260585), (844, 258115), (988, 220495), (1045, 208468), (1055, 206492), (1235, 176396), (1430, 152342), (1444, 150865), (1805, 120692), (2090, 104234), (2110, 103246), (2321, 93860), (2470, 88198), (2717, 80180), (2743, 79420), (2860, 76171), (3610, 60346), (3971, 54860), (4009, 54340), (4180, 52117), (4220, 51623), (4642, 46930), (4693, 46420), (4940, 44099), (5434, 40090), (5486, 39710), (7220, 30173), (7942, 27430), (8018, 27170), (9284, 23465), (9386, 23210), (10868, 20045), (10972, 19855), (11605, 18772), (13585, 16036), (13715, 15884)]