20548320

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:157

約数の個数: 192

約数和(自身を含む): 72394560

約数和(自身を除く): 51846240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 37, 39, 40, 48, 52, 60, 65, 74, 78, 80, 89, 96, 104, 111, 120, 130, 148, 156, 160, 178, 185, 195, 208, 222, 240, 260, 267, 296, 312, 356, 370, 390, 416, 444, 445, 480, 481, 520, 534, 555, 592, 624, 712, 740, 780, 888, 890, 962, 1040, 1068, 1110, 1157, 1184, 1248, 1335, 1424, 1443, 1480, 1560, 1776, 1780, 1924, 2080, 2136, 2220, 2314, 2405, 2670, 2848, 2886, 2960, 3120, 3293, 3471, 3552, 3560, 3848, 4272, 4440, 4628, 4810, 5340, 5772, 5785, 5920, 6240, 6586, 6942, 7120, 7215, 7696, 8544, 8880, 9256, 9620, 9879, 10680, 11544, 11570, 13172, 13884, 14240, 14430, 15392, 16465, 17355, 17760, 18512, 19240, 19758, 21360, 23088, 23140, 26344, 27768, 28860, 32930, 34710, 37024, 38480, 39516, 42720, 42809, 46176, 46280, 49395, 52688, 55536, 57720, 65860, 69420, 76960, 79032, 85618, 92560, 98790, 105376, 111072, 115440, 128427, 131720, 138840, 158064, 171236, 185120, 197580, 214045, 230880, 256854, 263440, 277680, 316128, 342472, 395160, 428090, 513708, 526880, 555360, 642135, 684944, 790320, 856180, 1027416, 1284270, 1369888, 1580640, 1712360, 2054832, 2568540, 3424720, 4109664, 5137080, 6849440, 10274160, 20548320]

約数ペア:

[(1, 20548320), (2, 10274160), (3, 6849440), (4, 5137080), (5, 4109664), (6, 3424720), (8, 2568540), (10, 2054832), (12, 1712360), (13, 1580640), (15, 1369888), (16, 1284270), (20, 1027416), (24, 856180), (26, 790320), (30, 684944), (32, 642135), (37, 555360), (39, 526880), (40, 513708), (48, 428090), (52, 395160), (60, 342472), (65, 316128), (74, 277680), (78, 263440), (80, 256854), (89, 230880), (96, 214045), (104, 197580), (111, 185120), (120, 171236), (130, 158064), (148, 138840), (156, 131720), (160, 128427), (178, 115440), (185, 111072), (195, 105376), (208, 98790), (222, 92560), (240, 85618), (260, 79032), (267, 76960), (296, 69420), (312, 65860), (356, 57720), (370, 55536), (390, 52688), (416, 49395), (444, 46280), (445, 46176), (480, 42809), (481, 42720), (520, 39516), (534, 38480), (555, 37024), (592, 34710), (624, 32930), (712, 28860), (740, 27768), (780, 26344), (888, 23140), (890, 23088), (962, 21360), (1040, 19758), (1068, 19240), (1110, 18512), (1157, 17760), (1184, 17355), (1248, 16465), (1335, 15392), (1424, 14430), (1443, 14240), (1480, 13884), (1560, 13172), (1776, 11570), (1780, 11544), (1924, 10680), (2080, 9879), (2136, 9620), (2220, 9256), (2314, 8880), (2405, 8544), (2670, 7696), (2848, 7215), (2886, 7120), (2960, 6942), (3120, 6586), (3293, 6240), (3471, 5920), (3552, 5785), (3560, 5772), (3848, 5340), (4272, 4810), (4440, 4628)]