20481447840

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{99929}}^1$

素因数の和:100015

約数の個数: 192

約数和(自身を含む): 74942703360

約数和(自身を除く): 54461255520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 61, 70, 80, 84, 96, 105, 112, 120, 122, 140, 160, 168, 183, 210, 224, 240, 244, 280, 305, 336, 366, 420, 427, 480, 488, 560, 610, 672, 732, 840, 854, 915, 976, 1120, 1220, 1281, 1464, 1680, 1708, 1830, 1952, 2135, 2440, 2562, 2928, 3360, 3416, 3660, 4270, 4880, 5124, 5856, 6405, 6832, 7320, 8540, 9760, 10248, 12810, 13664, 14640, 17080, 20496, 25620, 29280, 34160, 40992, 51240, 68320, 99929, 102480, 199858, 204960, 299787, 399716, 499645, 599574, 699503, 799432, 999290, 1199148, 1399006, 1498935, 1598864, 1998580, 2098509, 2398296, 2798012, 2997870, 3197728, 3497515, 3997160, 4197018, 4796592, 5596024, 5995740, 6095669, 6995030, 7994320, 8394036, 9593184, 10492545, 11192048, 11991480, 12191338, 13990060, 15988640, 16788072, 18287007, 20985090, 22384096, 23982960, 24382676, 27980120, 30478345, 33576144, 36574014, 41970180, 42669683, 47965920, 48765352, 55960240, 60956690, 67152288, 73148028, 83940360, 85339366, 91435035, 97530704, 111920480, 121913380, 128009049, 146296056, 167880720, 170678732, 182870070, 195061408, 213348415, 243826760, 256018098, 292592112, 335761440, 341357464, 365740140, 426696830, 487653520, 512036196, 585184224, 640045245, 682714928, 731480280, 853393660, 975307040, 1024072392, 1280090490, 1365429856, 1462960560, 1706787320, 2048144784, 2560180980, 2925921120, 3413574640, 4096289568, 5120361960, 6827149280, 10240723920, 20481447840]

約数ペア:

[(1, 20481447840), (2, 10240723920), (3, 6827149280), (4, 5120361960), (5, 4096289568), (6, 3413574640), (7, 2925921120), (8, 2560180980), (10, 2048144784), (12, 1706787320), (14, 1462960560), (15, 1365429856), (16, 1280090490), (20, 1024072392), (21, 975307040), (24, 853393660), (28, 731480280), (30, 682714928), (32, 640045245), (35, 585184224), (40, 512036196), (42, 487653520), (48, 426696830), (56, 365740140), (60, 341357464), (61, 335761440), (70, 292592112), (80, 256018098), (84, 243826760), (96, 213348415), (105, 195061408), (112, 182870070), (120, 170678732), (122, 167880720), (140, 146296056), (160, 128009049), (168, 121913380), (183, 111920480), (210, 97530704), (224, 91435035), (240, 85339366), (244, 83940360), (280, 73148028), (305, 67152288), (336, 60956690), (366, 55960240), (420, 48765352), (427, 47965920), (480, 42669683), (488, 41970180), (560, 36574014), (610, 33576144), (672, 30478345), (732, 27980120), (840, 24382676), (854, 23982960), (915, 22384096), (976, 20985090), (1120, 18287007), (1220, 16788072), (1281, 15988640), (1464, 13990060), (1680, 12191338), (1708, 11991480), (1830, 11192048), (1952, 10492545), (2135, 9593184), (2440, 8394036), (2562, 7994320), (2928, 6995030), (3360, 6095669), (3416, 5995740), (3660, 5596024), (4270, 4796592), (4880, 4197018), (5124, 3997160), (5856, 3497515), (6405, 3197728), (6832, 2997870), (7320, 2798012), (8540, 2398296), (9760, 2098509), (10248, 1998580), (12810, 1598864), (13664, 1498935), (14640, 1399006), (17080, 1199148), (20496, 999290), (25620, 799432), (29280, 699503), (34160, 599574), (40992, 499645), (51240, 399716), (68320, 299787), (99929, 204960), (102480, 199858)]