18799280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{601}}^1$

素因数の和:654

約数の個数: 80

約数和(自身を含む): 48371904

約数和(自身を除く): 29572624

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 80, 85, 92, 115, 136, 170, 184, 230, 272, 340, 368, 391, 460, 601, 680, 782, 920, 1202, 1360, 1564, 1840, 1955, 2404, 3005, 3128, 3910, 4808, 6010, 6256, 7820, 9616, 10217, 12020, 13823, 15640, 20434, 24040, 27646, 31280, 40868, 48080, 51085, 55292, 69115, 81736, 102170, 110584, 138230, 163472, 204340, 221168, 234991, 276460, 408680, 469982, 552920, 817360, 939964, 1105840, 1174955, 1879928, 2349910, 3759856, 4699820, 9399640, 18799280]

約数ペア:

[(1, 18799280), (2, 9399640), (4, 4699820), (5, 3759856), (8, 2349910), (10, 1879928), (16, 1174955), (17, 1105840), (20, 939964), (23, 817360), (34, 552920), (40, 469982), (46, 408680), (68, 276460), (80, 234991), (85, 221168), (92, 204340), (115, 163472), (136, 138230), (170, 110584), (184, 102170), (230, 81736), (272, 69115), (340, 55292), (368, 51085), (391, 48080), (460, 40868), (601, 31280), (680, 27646), (782, 24040), (920, 20434), (1202, 15640), (1360, 13823), (1564, 12020), (1840, 10217), (1955, 9616), (2404, 7820), (3005, 6256), (3128, 6010), (3910, 4808)]