128871120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{971}}^1$

素因数の和:1073

約数の個数: 160

約数和(自身を含む): 462827520

約数和(自身を除く): 333956400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 79, 80, 84, 105, 112, 120, 140, 158, 168, 210, 237, 240, 280, 316, 336, 395, 420, 474, 553, 560, 632, 790, 840, 948, 971, 1106, 1185, 1264, 1580, 1659, 1680, 1896, 1942, 2212, 2370, 2765, 2913, 3160, 3318, 3792, 3884, 4424, 4740, 4855, 5530, 5826, 6320, 6636, 6797, 7768, 8295, 8848, 9480, 9710, 11060, 11652, 13272, 13594, 14565, 15536, 16590, 18960, 19420, 20391, 22120, 23304, 26544, 27188, 29130, 33180, 33985, 38840, 40782, 44240, 46608, 54376, 58260, 66360, 67970, 76709, 77680, 81564, 101955, 108752, 116520, 132720, 135940, 153418, 163128, 203910, 230127, 233040, 271880, 306836, 326256, 383545, 407820, 460254, 536963, 543760, 613672, 767090, 815640, 920508, 1073926, 1150635, 1227344, 1534180, 1610889, 1631280, 1841016, 2147852, 2301270, 2684815, 3068360, 3221778, 3682032, 4295704, 4602540, 5369630, 6136720, 6443556, 8054445, 8591408, 9205080, 10739260, 12887112, 16108890, 18410160, 21478520, 25774224, 32217780, 42957040, 64435560, 128871120]

約数ペア:

[(1, 128871120), (2, 64435560), (3, 42957040), (4, 32217780), (5, 25774224), (6, 21478520), (7, 18410160), (8, 16108890), (10, 12887112), (12, 10739260), (14, 9205080), (15, 8591408), (16, 8054445), (20, 6443556), (21, 6136720), (24, 5369630), (28, 4602540), (30, 4295704), (35, 3682032), (40, 3221778), (42, 3068360), (48, 2684815), (56, 2301270), (60, 2147852), (70, 1841016), (79, 1631280), (80, 1610889), (84, 1534180), (105, 1227344), (112, 1150635), (120, 1073926), (140, 920508), (158, 815640), (168, 767090), (210, 613672), (237, 543760), (240, 536963), (280, 460254), (316, 407820), (336, 383545), (395, 326256), (420, 306836), (474, 271880), (553, 233040), (560, 230127), (632, 203910), (790, 163128), (840, 153418), (948, 135940), (971, 132720), (1106, 116520), (1185, 108752), (1264, 101955), (1580, 81564), (1659, 77680), (1680, 76709), (1896, 67970), (1942, 66360), (2212, 58260), (2370, 54376), (2765, 46608), (2913, 44240), (3160, 40782), (3318, 38840), (3792, 33985), (3884, 33180), (4424, 29130), (4740, 27188), (4855, 26544), (5530, 23304), (5826, 22120), (6320, 20391), (6636, 19420), (6797, 18960), (7768, 16590), (8295, 15536), (8848, 14565), (9480, 13594), (9710, 13272), (11060, 11652)]