18390480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:181

約数の個数: 160

約数和(自身を含む): 62198400

約数和(自身を除く): 43807920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 37, 38, 40, 48, 57, 60, 74, 76, 80, 95, 109, 111, 114, 120, 148, 152, 185, 190, 218, 222, 228, 240, 285, 296, 304, 327, 370, 380, 436, 444, 456, 545, 555, 570, 592, 654, 703, 740, 760, 872, 888, 912, 1090, 1110, 1140, 1308, 1406, 1480, 1520, 1635, 1744, 1776, 2071, 2109, 2180, 2220, 2280, 2616, 2812, 2960, 3270, 3515, 4033, 4142, 4218, 4360, 4440, 4560, 5232, 5624, 6213, 6540, 7030, 8066, 8284, 8436, 8720, 8880, 10355, 10545, 11248, 12099, 12426, 13080, 14060, 16132, 16568, 16872, 20165, 20710, 21090, 24198, 24852, 26160, 28120, 31065, 32264, 33136, 33744, 40330, 41420, 42180, 48396, 49704, 56240, 60495, 62130, 64528, 76627, 80660, 82840, 84360, 96792, 99408, 120990, 124260, 153254, 161320, 165680, 168720, 193584, 229881, 241980, 248520, 306508, 322640, 383135, 459762, 483960, 497040, 613016, 766270, 919524, 967920, 1149405, 1226032, 1532540, 1839048, 2298810, 3065080, 3678096, 4597620, 6130160, 9195240, 18390480]

約数ペア:

[(1, 18390480), (2, 9195240), (3, 6130160), (4, 4597620), (5, 3678096), (6, 3065080), (8, 2298810), (10, 1839048), (12, 1532540), (15, 1226032), (16, 1149405), (19, 967920), (20, 919524), (24, 766270), (30, 613016), (37, 497040), (38, 483960), (40, 459762), (48, 383135), (57, 322640), (60, 306508), (74, 248520), (76, 241980), (80, 229881), (95, 193584), (109, 168720), (111, 165680), (114, 161320), (120, 153254), (148, 124260), (152, 120990), (185, 99408), (190, 96792), (218, 84360), (222, 82840), (228, 80660), (240, 76627), (285, 64528), (296, 62130), (304, 60495), (327, 56240), (370, 49704), (380, 48396), (436, 42180), (444, 41420), (456, 40330), (545, 33744), (555, 33136), (570, 32264), (592, 31065), (654, 28120), (703, 26160), (740, 24852), (760, 24198), (872, 21090), (888, 20710), (912, 20165), (1090, 16872), (1110, 16568), (1140, 16132), (1308, 14060), (1406, 13080), (1480, 12426), (1520, 12099), (1635, 11248), (1744, 10545), (1776, 10355), (2071, 8880), (2109, 8720), (2180, 8436), (2220, 8284), (2280, 8066), (2616, 7030), (2812, 6540), (2960, 6213), (3270, 5624), (3515, 5232), (4033, 4560), (4142, 4440), (4218, 4360)]