40798640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 101645280

約数和(自身を除く): 60846640

約数列:

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

約数ペア:

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