81725280

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1871}}^1$

素因数の和:1909

約数の個数: 192

約数和(自身を含む): 317011968

約数和(自身を除く): 235286688

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 96, 104, 105, 112, 120, 130, 140, 156, 160, 168, 182, 195, 208, 210, 224, 240, 260, 273, 280, 312, 336, 364, 390, 416, 420, 455, 480, 520, 546, 560, 624, 672, 728, 780, 840, 910, 1040, 1092, 1120, 1248, 1365, 1456, 1560, 1680, 1820, 1871, 2080, 2184, 2730, 2912, 3120, 3360, 3640, 3742, 4368, 5460, 5613, 6240, 7280, 7484, 8736, 9355, 10920, 11226, 13097, 14560, 14968, 18710, 21840, 22452, 24323, 26194, 28065, 29936, 37420, 39291, 43680, 44904, 48646, 52388, 56130, 59872, 65485, 72969, 74840, 78582, 89808, 97292, 104776, 112260, 121615, 130970, 145938, 149680, 157164, 170261, 179616, 194584, 196455, 209552, 224520, 243230, 261940, 291876, 299360, 314328, 340522, 364845, 389168, 392910, 419104, 449040, 486460, 510783, 523880, 583752, 628656, 681044, 729690, 778336, 785820, 851305, 898080, 972920, 1021566, 1047760, 1167504, 1257312, 1362088, 1459380, 1571640, 1702610, 1945840, 2043132, 2095520, 2335008, 2553915, 2724176, 2918760, 3143280, 3405220, 3891680, 4086264, 5107830, 5448352, 5837520, 6286560, 6810440, 8172528, 10215660, 11675040, 13620880, 16345056, 20431320, 27241760, 40862640, 81725280]

約数ペア:

[(1, 81725280), (2, 40862640), (3, 27241760), (4, 20431320), (5, 16345056), (6, 13620880), (7, 11675040), (8, 10215660), (10, 8172528), (12, 6810440), (13, 6286560), (14, 5837520), (15, 5448352), (16, 5107830), (20, 4086264), (21, 3891680), (24, 3405220), (26, 3143280), (28, 2918760), (30, 2724176), (32, 2553915), (35, 2335008), (39, 2095520), (40, 2043132), (42, 1945840), (48, 1702610), (52, 1571640), (56, 1459380), (60, 1362088), (65, 1257312), (70, 1167504), (78, 1047760), (80, 1021566), (84, 972920), (91, 898080), (96, 851305), (104, 785820), (105, 778336), (112, 729690), (120, 681044), (130, 628656), (140, 583752), (156, 523880), (160, 510783), (168, 486460), (182, 449040), (195, 419104), (208, 392910), (210, 389168), (224, 364845), (240, 340522), (260, 314328), (273, 299360), (280, 291876), (312, 261940), (336, 243230), (364, 224520), (390, 209552), (416, 196455), (420, 194584), (455, 179616), (480, 170261), (520, 157164), (546, 149680), (560, 145938), (624, 130970), (672, 121615), (728, 112260), (780, 104776), (840, 97292), (910, 89808), (1040, 78582), (1092, 74840), (1120, 72969), (1248, 65485), (1365, 59872), (1456, 56130), (1560, 52388), (1680, 48646), (1820, 44904), (1871, 43680), (2080, 39291), (2184, 37420), (2730, 29936), (2912, 28065), (3120, 26194), (3360, 24323), (3640, 22452), (3742, 21840), (4368, 18710), (5460, 14968), (5613, 14560), (6240, 13097), (7280, 11226), (7484, 10920), (8736, 9355)]