25728720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:177

約数の個数: 160

約数和(自身を含む): 85708800

約数和(自身を除く): 59980080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 59, 60, 69, 79, 80, 92, 115, 118, 120, 138, 158, 177, 184, 230, 236, 237, 240, 276, 295, 316, 345, 354, 368, 395, 460, 472, 474, 552, 590, 632, 690, 708, 790, 885, 920, 944, 948, 1104, 1180, 1185, 1264, 1357, 1380, 1416, 1580, 1770, 1817, 1840, 1896, 2360, 2370, 2714, 2760, 2832, 3160, 3540, 3634, 3792, 4071, 4661, 4720, 4740, 5428, 5451, 5520, 6320, 6785, 7080, 7268, 8142, 9085, 9322, 9480, 10856, 10902, 13570, 13983, 14160, 14536, 16284, 18170, 18644, 18960, 20355, 21712, 21804, 23305, 27140, 27255, 27966, 29072, 32568, 36340, 37288, 40710, 43608, 46610, 54280, 54510, 55932, 65136, 69915, 72680, 74576, 81420, 87216, 93220, 107203, 108560, 109020, 111864, 139830, 145360, 162840, 186440, 214406, 218040, 223728, 279660, 321609, 325680, 372880, 428812, 436080, 536015, 559320, 643218, 857624, 1072030, 1118640, 1286436, 1608045, 1715248, 2144060, 2572872, 3216090, 4288120, 5145744, 6432180, 8576240, 12864360, 25728720]

約数ペア:

[(1, 25728720), (2, 12864360), (3, 8576240), (4, 6432180), (5, 5145744), (6, 4288120), (8, 3216090), (10, 2572872), (12, 2144060), (15, 1715248), (16, 1608045), (20, 1286436), (23, 1118640), (24, 1072030), (30, 857624), (40, 643218), (46, 559320), (48, 536015), (59, 436080), (60, 428812), (69, 372880), (79, 325680), (80, 321609), (92, 279660), (115, 223728), (118, 218040), (120, 214406), (138, 186440), (158, 162840), (177, 145360), (184, 139830), (230, 111864), (236, 109020), (237, 108560), (240, 107203), (276, 93220), (295, 87216), (316, 81420), (345, 74576), (354, 72680), (368, 69915), (395, 65136), (460, 55932), (472, 54510), (474, 54280), (552, 46610), (590, 43608), (632, 40710), (690, 37288), (708, 36340), (790, 32568), (885, 29072), (920, 27966), (944, 27255), (948, 27140), (1104, 23305), (1180, 21804), (1185, 21712), (1264, 20355), (1357, 18960), (1380, 18644), (1416, 18170), (1580, 16284), (1770, 14536), (1817, 14160), (1840, 13983), (1896, 13570), (2360, 10902), (2370, 10856), (2714, 9480), (2760, 9322), (2832, 9085), (3160, 8142), (3540, 7268), (3634, 7080), (3792, 6785), (4071, 6320), (4661, 5520), (4720, 5451), (4740, 5428)]