28705950

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{701}}^1$

素因数の和:739

約数の個数: 144

約数和(自身を含む): 95056416

約数和(自身を除く): 66350466

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 25, 26, 30, 35, 39, 42, 45, 50, 63, 65, 70, 75, 78, 90, 91, 105, 117, 126, 130, 150, 175, 182, 195, 210, 225, 234, 273, 315, 325, 350, 390, 450, 455, 525, 546, 585, 630, 650, 701, 819, 910, 975, 1050, 1170, 1365, 1402, 1575, 1638, 1950, 2103, 2275, 2730, 2925, 3150, 3505, 4095, 4206, 4550, 4907, 5850, 6309, 6825, 7010, 8190, 9113, 9814, 10515, 12618, 13650, 14721, 17525, 18226, 20475, 21030, 24535, 27339, 29442, 31545, 35050, 40950, 44163, 45565, 49070, 52575, 54678, 63090, 63791, 73605, 82017, 88326, 91130, 105150, 122675, 127582, 136695, 147210, 157725, 164034, 191373, 220815, 227825, 245350, 273390, 315450, 318955, 368025, 382746, 410085, 441630, 455650, 574119, 637910, 683475, 736050, 820170, 956865, 1104075, 1148238, 1366950, 1594775, 1913730, 2050425, 2208150, 2870595, 3189550, 4100850, 4784325, 5741190, 9568650, 14352975, 28705950]

約数ペア:

[(1, 28705950), (2, 14352975), (3, 9568650), (5, 5741190), (6, 4784325), (7, 4100850), (9, 3189550), (10, 2870595), (13, 2208150), (14, 2050425), (15, 1913730), (18, 1594775), (21, 1366950), (25, 1148238), (26, 1104075), (30, 956865), (35, 820170), (39, 736050), (42, 683475), (45, 637910), (50, 574119), (63, 455650), (65, 441630), (70, 410085), (75, 382746), (78, 368025), (90, 318955), (91, 315450), (105, 273390), (117, 245350), (126, 227825), (130, 220815), (150, 191373), (175, 164034), (182, 157725), (195, 147210), (210, 136695), (225, 127582), (234, 122675), (273, 105150), (315, 91130), (325, 88326), (350, 82017), (390, 73605), (450, 63791), (455, 63090), (525, 54678), (546, 52575), (585, 49070), (630, 45565), (650, 44163), (701, 40950), (819, 35050), (910, 31545), (975, 29442), (1050, 27339), (1170, 24535), (1365, 21030), (1402, 20475), (1575, 18226), (1638, 17525), (1950, 14721), (2103, 13650), (2275, 12618), (2730, 10515), (2925, 9814), (3150, 9113), (3505, 8190), (4095, 7010), (4206, 6825), (4550, 6309), (4907, 5850)]