168405740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:375

約数の個数: 96

約数和(自身を含む): 399168000

約数和(自身を除く): 230762260

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 131, 170, 190, 199, 262, 323, 340, 380, 398, 524, 646, 655, 796, 995, 1292, 1310, 1615, 1990, 2227, 2489, 2620, 3230, 3383, 3781, 3980, 4454, 4978, 6460, 6766, 7562, 8908, 9956, 11135, 12445, 13532, 15124, 16915, 18905, 22270, 24890, 26069, 33830, 37810, 42313, 44540, 49780, 52138, 64277, 67660, 75620, 84626, 104276, 128554, 130345, 169252, 211565, 257108, 260690, 321385, 423130, 443173, 495311, 521380, 642770, 846260, 886346, 990622, 1285540, 1772692, 1981244, 2215865, 2476555, 4431730, 4953110, 8420287, 8863460, 9906220, 16840574, 33681148, 42101435, 84202870, 168405740]

約数ペア:

[(1, 168405740), (2, 84202870), (4, 42101435), (5, 33681148), (10, 16840574), (17, 9906220), (19, 8863460), (20, 8420287), (34, 4953110), (38, 4431730), (68, 2476555), (76, 2215865), (85, 1981244), (95, 1772692), (131, 1285540), (170, 990622), (190, 886346), (199, 846260), (262, 642770), (323, 521380), (340, 495311), (380, 443173), (398, 423130), (524, 321385), (646, 260690), (655, 257108), (796, 211565), (995, 169252), (1292, 130345), (1310, 128554), (1615, 104276), (1990, 84626), (2227, 75620), (2489, 67660), (2620, 64277), (3230, 52138), (3383, 49780), (3781, 44540), (3980, 42313), (4454, 37810), (4978, 33830), (6460, 26069), (6766, 24890), (7562, 22270), (8908, 18905), (9956, 16915), (11135, 15124), (12445, 13532)]