1638205920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87511}}^1$

素因数の和:87545

約数の個数: 144

約数和(自身を含む): 6020475552

約数和(自身を除く): 4382269632

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1170, 1248, 1440, 1560, 1872, 2080, 2340, 3120, 3744, 4680, 6240, 9360, 18720, 87511, 175022, 262533, 350044, 437555, 525066, 700088, 787599, 875110, 1050132, 1137643, 1312665, 1400176, 1575198, 1750220, 2100264, 2275286, 2625330, 2800352, 3150396, 3412929, 3500440, 3937995, 4200528, 4550572, 5250660, 5688215, 6300792, 6825858, 7000880, 7875990, 8401056, 9101144, 10238787, 10501320, 11376430, 12601584, 13651716, 14001760, 15751980, 17064645, 18202288, 20477574, 21002640, 22752860, 25203168, 27303432, 31503960, 34129290, 36404576, 40955148, 42005280, 45505720, 51193935, 54606864, 63007920, 68258580, 81910296, 91011440, 102387870, 109213728, 126015840, 136517160, 163820592, 182022880, 204775740, 273034320, 327641184, 409551480, 546068640, 819102960, 1638205920]

約数ペア:

[(1, 1638205920), (2, 819102960), (3, 546068640), (4, 409551480), (5, 327641184), (6, 273034320), (8, 204775740), (9, 182022880), (10, 163820592), (12, 136517160), (13, 126015840), (15, 109213728), (16, 102387870), (18, 91011440), (20, 81910296), (24, 68258580), (26, 63007920), (30, 54606864), (32, 51193935), (36, 45505720), (39, 42005280), (40, 40955148), (45, 36404576), (48, 34129290), (52, 31503960), (60, 27303432), (65, 25203168), (72, 22752860), (78, 21002640), (80, 20477574), (90, 18202288), (96, 17064645), (104, 15751980), (117, 14001760), (120, 13651716), (130, 12601584), (144, 11376430), (156, 10501320), (160, 10238787), (180, 9101144), (195, 8401056), (208, 7875990), (234, 7000880), (240, 6825858), (260, 6300792), (288, 5688215), (312, 5250660), (360, 4550572), (390, 4200528), (416, 3937995), (468, 3500440), (480, 3412929), (520, 3150396), (585, 2800352), (624, 2625330), (720, 2275286), (780, 2100264), (936, 1750220), (1040, 1575198), (1170, 1400176), (1248, 1312665), (1440, 1137643), (1560, 1050132), (1872, 875110), (2080, 787599), (2340, 700088), (3120, 525066), (3744, 437555), (4680, 350044), (6240, 262533), (9360, 175022), (18720, 87511)]