81597280

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:392

約数の個数: 96

約数和(自身を含む): 206569440

約数和(自身を除く): 124972160

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 131, 136, 160, 170, 229, 262, 272, 340, 458, 524, 544, 655, 680, 916, 1048, 1145, 1310, 1360, 1832, 2096, 2227, 2290, 2620, 2720, 3664, 3893, 4192, 4454, 4580, 5240, 7328, 7786, 8908, 9160, 10480, 11135, 15572, 17816, 18320, 19465, 20960, 22270, 29999, 31144, 35632, 36640, 38930, 44540, 59998, 62288, 71264, 77860, 89080, 119996, 124576, 149995, 155720, 178160, 239992, 299990, 311440, 356320, 479984, 509983, 599980, 622880, 959968, 1019966, 1199960, 2039932, 2399920, 2549915, 4079864, 4799840, 5099830, 8159728, 10199660, 16319456, 20399320, 40798640, 81597280]

約数ペア:

[(1, 81597280), (2, 40798640), (4, 20399320), (5, 16319456), (8, 10199660), (10, 8159728), (16, 5099830), (17, 4799840), (20, 4079864), (32, 2549915), (34, 2399920), (40, 2039932), (68, 1199960), (80, 1019966), (85, 959968), (131, 622880), (136, 599980), (160, 509983), (170, 479984), (229, 356320), (262, 311440), (272, 299990), (340, 239992), (458, 178160), (524, 155720), (544, 149995), (655, 124576), (680, 119996), (916, 89080), (1048, 77860), (1145, 71264), (1310, 62288), (1360, 59998), (1832, 44540), (2096, 38930), (2227, 36640), (2290, 35632), (2620, 31144), (2720, 29999), (3664, 22270), (3893, 20960), (4192, 19465), (4454, 18320), (4580, 17816), (5240, 15572), (7328, 11135), (7786, 10480), (8908, 9160)]