20388120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:209

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 44930280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 83, 89, 92, 115, 120, 138, 166, 178, 184, 230, 249, 267, 276, 332, 345, 356, 415, 445, 460, 498, 534, 552, 664, 690, 712, 830, 890, 920, 996, 1068, 1245, 1335, 1380, 1660, 1780, 1909, 1992, 2047, 2136, 2490, 2670, 2760, 3320, 3560, 3818, 4094, 4980, 5340, 5727, 6141, 7387, 7636, 8188, 9545, 9960, 10235, 10680, 11454, 12282, 14774, 15272, 16376, 19090, 20470, 22161, 22908, 24564, 28635, 29548, 30705, 36935, 38180, 40940, 44322, 45816, 49128, 57270, 59096, 61410, 73870, 76360, 81880, 88644, 110805, 114540, 122820, 147740, 169901, 177288, 221610, 229080, 245640, 295480, 339802, 443220, 509703, 679604, 849505, 886440, 1019406, 1359208, 1699010, 2038812, 2548515, 3398020, 4077624, 5097030, 6796040, 10194060, 20388120]

約数ペア:

[(1, 20388120), (2, 10194060), (3, 6796040), (4, 5097030), (5, 4077624), (6, 3398020), (8, 2548515), (10, 2038812), (12, 1699010), (15, 1359208), (20, 1019406), (23, 886440), (24, 849505), (30, 679604), (40, 509703), (46, 443220), (60, 339802), (69, 295480), (83, 245640), (89, 229080), (92, 221610), (115, 177288), (120, 169901), (138, 147740), (166, 122820), (178, 114540), (184, 110805), (230, 88644), (249, 81880), (267, 76360), (276, 73870), (332, 61410), (345, 59096), (356, 57270), (415, 49128), (445, 45816), (460, 44322), (498, 40940), (534, 38180), (552, 36935), (664, 30705), (690, 29548), (712, 28635), (830, 24564), (890, 22908), (920, 22161), (996, 20470), (1068, 19090), (1245, 16376), (1335, 15272), (1380, 14774), (1660, 12282), (1780, 11454), (1909, 10680), (1992, 10235), (2047, 9960), (2136, 9545), (2490, 8188), (2670, 7636), (2760, 7387), (3320, 6141), (3560, 5727), (3818, 5340), (4094, 4980)]