81996720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:711

約数の個数: 160

約数和(自身を含む): 280857024

約数和(自身を除く): 198860304

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 41, 48, 52, 60, 65, 78, 80, 82, 104, 120, 123, 130, 156, 164, 195, 205, 208, 240, 246, 260, 312, 328, 390, 410, 492, 520, 533, 615, 624, 641, 656, 780, 820, 984, 1040, 1066, 1230, 1282, 1560, 1599, 1640, 1923, 1968, 2132, 2460, 2564, 2665, 3120, 3198, 3205, 3280, 3846, 4264, 4920, 5128, 5330, 6396, 6410, 7692, 7995, 8333, 8528, 9615, 9840, 10256, 10660, 12792, 12820, 15384, 15990, 16666, 19230, 21320, 24999, 25584, 25640, 26281, 30768, 31980, 33332, 38460, 41665, 42640, 49998, 51280, 52562, 63960, 66664, 76920, 78843, 83330, 99996, 105124, 124995, 127920, 131405, 133328, 153840, 157686, 166660, 199992, 210248, 249990, 262810, 315372, 333320, 341653, 394215, 399984, 420496, 499980, 525620, 630744, 666640, 683306, 788430, 999960, 1024959, 1051240, 1261488, 1366612, 1576860, 1708265, 1999920, 2049918, 2102480, 2733224, 3153720, 3416530, 4099836, 5124795, 5466448, 6307440, 6833060, 8199672, 10249590, 13666120, 16399344, 20499180, 27332240, 40998360, 81996720]

約数ペア:

[(1, 81996720), (2, 40998360), (3, 27332240), (4, 20499180), (5, 16399344), (6, 13666120), (8, 10249590), (10, 8199672), (12, 6833060), (13, 6307440), (15, 5466448), (16, 5124795), (20, 4099836), (24, 3416530), (26, 3153720), (30, 2733224), (39, 2102480), (40, 2049918), (41, 1999920), (48, 1708265), (52, 1576860), (60, 1366612), (65, 1261488), (78, 1051240), (80, 1024959), (82, 999960), (104, 788430), (120, 683306), (123, 666640), (130, 630744), (156, 525620), (164, 499980), (195, 420496), (205, 399984), (208, 394215), (240, 341653), (246, 333320), (260, 315372), (312, 262810), (328, 249990), (390, 210248), (410, 199992), (492, 166660), (520, 157686), (533, 153840), (615, 133328), (624, 131405), (641, 127920), (656, 124995), (780, 105124), (820, 99996), (984, 83330), (1040, 78843), (1066, 76920), (1230, 66664), (1282, 63960), (1560, 52562), (1599, 51280), (1640, 49998), (1923, 42640), (1968, 41665), (2132, 38460), (2460, 33332), (2564, 31980), (2665, 30768), (3120, 26281), (3198, 25640), (3205, 25584), (3280, 24999), (3846, 21320), (4264, 19230), (4920, 16666), (5128, 15990), (5330, 15384), (6396, 12820), (6410, 12792), (7692, 10660), (7995, 10256), (8333, 9840), (8528, 9615)]