81027520

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{593}}^1$

素因数の和:678

約数の個数: 112

約数和(自身を含む): 224503488

約数和(自身を除く): 143475968

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 80, 112, 122, 140, 160, 224, 244, 280, 305, 320, 427, 448, 488, 560, 593, 610, 854, 976, 1120, 1186, 1220, 1708, 1952, 2135, 2240, 2372, 2440, 2965, 3416, 3904, 4151, 4270, 4744, 4880, 5930, 6832, 8302, 8540, 9488, 9760, 11860, 13664, 16604, 17080, 18976, 19520, 20755, 23720, 27328, 33208, 34160, 36173, 37952, 41510, 47440, 66416, 68320, 72346, 83020, 94880, 132832, 136640, 144692, 166040, 180865, 189760, 253211, 265664, 289384, 332080, 361730, 506422, 578768, 664160, 723460, 1012844, 1157536, 1266055, 1328320, 1446920, 2025688, 2315072, 2532110, 2893840, 4051376, 5064220, 5787680, 8102752, 10128440, 11575360, 16205504, 20256880, 40513760, 81027520]

約数ペア:

[(1, 81027520), (2, 40513760), (4, 20256880), (5, 16205504), (7, 11575360), (8, 10128440), (10, 8102752), (14, 5787680), (16, 5064220), (20, 4051376), (28, 2893840), (32, 2532110), (35, 2315072), (40, 2025688), (56, 1446920), (61, 1328320), (64, 1266055), (70, 1157536), (80, 1012844), (112, 723460), (122, 664160), (140, 578768), (160, 506422), (224, 361730), (244, 332080), (280, 289384), (305, 265664), (320, 253211), (427, 189760), (448, 180865), (488, 166040), (560, 144692), (593, 136640), (610, 132832), (854, 94880), (976, 83020), (1120, 72346), (1186, 68320), (1220, 66416), (1708, 47440), (1952, 41510), (2135, 37952), (2240, 36173), (2372, 34160), (2440, 33208), (2965, 27328), (3416, 23720), (3904, 20755), (4151, 19520), (4270, 18976), (4744, 17080), (4880, 16604), (5930, 13664), (6832, 11860), (8302, 9760), (8540, 9488)]