78713440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 144

約数和(自身を含む): 209182176

約数和(自身を除く): 130468736

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 41, 52, 65, 71, 80, 82, 104, 130, 142, 160, 164, 169, 205, 208, 260, 284, 328, 338, 355, 410, 416, 520, 533, 568, 656, 676, 710, 820, 845, 923, 1040, 1066, 1136, 1312, 1352, 1420, 1640, 1690, 1846, 2080, 2132, 2272, 2665, 2704, 2840, 2911, 3280, 3380, 3692, 4264, 4615, 5330, 5408, 5680, 5822, 6560, 6760, 6929, 7384, 8528, 9230, 10660, 11360, 11644, 11999, 13520, 13858, 14555, 14768, 17056, 18460, 21320, 23288, 23998, 27040, 27716, 29110, 29536, 34645, 36920, 37843, 42640, 46576, 47996, 55432, 58220, 59995, 69290, 73840, 75686, 85280, 93152, 95992, 110864, 116440, 119990, 138580, 147680, 151372, 189215, 191984, 221728, 232880, 239980, 277160, 302744, 378430, 383968, 465760, 479960, 491959, 554320, 605488, 756860, 959920, 983918, 1108640, 1210976, 1513720, 1919840, 1967836, 2459795, 3027440, 3935672, 4919590, 6054880, 7871344, 9839180, 15742688, 19678360, 39356720, 78713440]

約数ペア:

[(1, 78713440), (2, 39356720), (4, 19678360), (5, 15742688), (8, 9839180), (10, 7871344), (13, 6054880), (16, 4919590), (20, 3935672), (26, 3027440), (32, 2459795), (40, 1967836), (41, 1919840), (52, 1513720), (65, 1210976), (71, 1108640), (80, 983918), (82, 959920), (104, 756860), (130, 605488), (142, 554320), (160, 491959), (164, 479960), (169, 465760), (205, 383968), (208, 378430), (260, 302744), (284, 277160), (328, 239980), (338, 232880), (355, 221728), (410, 191984), (416, 189215), (520, 151372), (533, 147680), (568, 138580), (656, 119990), (676, 116440), (710, 110864), (820, 95992), (845, 93152), (923, 85280), (1040, 75686), (1066, 73840), (1136, 69290), (1312, 59995), (1352, 58220), (1420, 55432), (1640, 47996), (1690, 46576), (1846, 42640), (2080, 37843), (2132, 36920), (2272, 34645), (2665, 29536), (2704, 29110), (2840, 27716), (2911, 27040), (3280, 23998), (3380, 23288), (3692, 21320), (4264, 18460), (4615, 17056), (5330, 14768), (5408, 14555), (5680, 13858), (5822, 13520), (6560, 11999), (6760, 11644), (6929, 11360), (7384, 10660), (8528, 9230)]