261423280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:267

約数の個数: 160

約数和(自身を含む): 692098560

約数和(自身を除く): 430675280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 67, 68, 76, 80, 85, 95, 134, 136, 151, 152, 170, 190, 268, 272, 302, 304, 323, 335, 340, 380, 536, 604, 646, 670, 680, 755, 760, 1072, 1139, 1208, 1273, 1292, 1340, 1360, 1510, 1520, 1615, 2278, 2416, 2546, 2567, 2584, 2680, 2869, 3020, 3230, 4556, 5092, 5134, 5168, 5360, 5695, 5738, 6040, 6365, 6460, 9112, 10117, 10184, 10268, 11390, 11476, 12080, 12730, 12835, 12920, 14345, 18224, 20234, 20368, 20536, 21641, 22780, 22952, 25460, 25670, 25840, 28690, 40468, 41072, 43282, 45560, 45904, 48773, 50585, 50920, 51340, 57380, 80936, 86564, 91120, 97546, 101170, 101840, 102680, 108205, 114760, 161872, 171989, 173128, 192223, 195092, 202340, 205360, 216410, 229520, 243865, 343978, 346256, 384446, 390184, 404680, 432820, 487730, 687956, 768892, 780368, 809360, 859945, 865640, 961115, 975460, 1375912, 1537784, 1719890, 1731280, 1922230, 1950920, 2751824, 3075568, 3267791, 3439780, 3844460, 3901840, 6535582, 6879560, 7688920, 13071164, 13759120, 15377840, 16338955, 26142328, 32677910, 52284656, 65355820, 130711640, 261423280]

約数ペア:

[(1, 261423280), (2, 130711640), (4, 65355820), (5, 52284656), (8, 32677910), (10, 26142328), (16, 16338955), (17, 15377840), (19, 13759120), (20, 13071164), (34, 7688920), (38, 6879560), (40, 6535582), (67, 3901840), (68, 3844460), (76, 3439780), (80, 3267791), (85, 3075568), (95, 2751824), (134, 1950920), (136, 1922230), (151, 1731280), (152, 1719890), (170, 1537784), (190, 1375912), (268, 975460), (272, 961115), (302, 865640), (304, 859945), (323, 809360), (335, 780368), (340, 768892), (380, 687956), (536, 487730), (604, 432820), (646, 404680), (670, 390184), (680, 384446), (755, 346256), (760, 343978), (1072, 243865), (1139, 229520), (1208, 216410), (1273, 205360), (1292, 202340), (1340, 195092), (1360, 192223), (1510, 173128), (1520, 171989), (1615, 161872), (2278, 114760), (2416, 108205), (2546, 102680), (2567, 101840), (2584, 101170), (2680, 97546), (2869, 91120), (3020, 86564), (3230, 80936), (4556, 57380), (5092, 51340), (5134, 50920), (5168, 50585), (5360, 48773), (5695, 45904), (5738, 45560), (6040, 43282), (6365, 41072), (6460, 40468), (9112, 28690), (10117, 25840), (10184, 25670), (10268, 25460), (11390, 22952), (11476, 22780), (12080, 21641), (12730, 20536), (12835, 20368), (12920, 20234), (14345, 18224)]