20847360

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:174

約数の個数: 144

約数和(自身を含む): 68433120

約数和(自身を除く): 47585760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 64, 80, 89, 96, 120, 122, 128, 160, 178, 183, 192, 240, 244, 256, 267, 305, 320, 356, 366, 384, 445, 480, 488, 534, 610, 640, 712, 732, 768, 890, 915, 960, 976, 1068, 1220, 1280, 1335, 1424, 1464, 1780, 1830, 1920, 1952, 2136, 2440, 2670, 2848, 2928, 3560, 3660, 3840, 3904, 4272, 4880, 5340, 5429, 5696, 5856, 7120, 7320, 7808, 8544, 9760, 10680, 10858, 11392, 11712, 14240, 14640, 15616, 16287, 17088, 19520, 21360, 21716, 22784, 23424, 27145, 28480, 29280, 32574, 34176, 39040, 42720, 43432, 46848, 54290, 56960, 58560, 65148, 68352, 78080, 81435, 85440, 86864, 108580, 113920, 117120, 130296, 162870, 170880, 173728, 217160, 234240, 260592, 325740, 341760, 347456, 434320, 521184, 651480, 694912, 868640, 1042368, 1302960, 1389824, 1737280, 2084736, 2605920, 3474560, 4169472, 5211840, 6949120, 10423680, 20847360]

約数ペア:

[(1, 20847360), (2, 10423680), (3, 6949120), (4, 5211840), (5, 4169472), (6, 3474560), (8, 2605920), (10, 2084736), (12, 1737280), (15, 1389824), (16, 1302960), (20, 1042368), (24, 868640), (30, 694912), (32, 651480), (40, 521184), (48, 434320), (60, 347456), (61, 341760), (64, 325740), (80, 260592), (89, 234240), (96, 217160), (120, 173728), (122, 170880), (128, 162870), (160, 130296), (178, 117120), (183, 113920), (192, 108580), (240, 86864), (244, 85440), (256, 81435), (267, 78080), (305, 68352), (320, 65148), (356, 58560), (366, 56960), (384, 54290), (445, 46848), (480, 43432), (488, 42720), (534, 39040), (610, 34176), (640, 32574), (712, 29280), (732, 28480), (768, 27145), (890, 23424), (915, 22784), (960, 21716), (976, 21360), (1068, 19520), (1220, 17088), (1280, 16287), (1335, 15616), (1424, 14640), (1464, 14240), (1780, 11712), (1830, 11392), (1920, 10858), (1952, 10680), (2136, 9760), (2440, 8544), (2670, 7808), (2848, 7320), (2928, 7120), (3560, 5856), (3660, 5696), (3840, 5429), (3904, 5340), (4272, 4880)]