2421720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^2$

素因数の和:86

約数の個数: 144

約数和(自身を含む): 9294480

約数和(自身を除く): 6872760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 120, 124, 126, 140, 155, 168, 180, 186, 210, 217, 248, 252, 279, 280, 310, 315, 360, 372, 420, 434, 465, 504, 558, 620, 630, 651, 744, 840, 868, 930, 961, 1085, 1116, 1240, 1260, 1302, 1395, 1736, 1860, 1922, 1953, 2170, 2232, 2520, 2604, 2790, 2883, 3255, 3720, 3844, 3906, 4340, 4805, 5208, 5580, 5766, 6510, 6727, 7688, 7812, 8649, 8680, 9610, 9765, 11160, 11532, 13020, 13454, 14415, 15624, 17298, 19220, 19530, 20181, 23064, 26040, 26908, 28830, 33635, 34596, 38440, 39060, 40362, 43245, 53816, 57660, 60543, 67270, 69192, 78120, 80724, 86490, 100905, 115320, 121086, 134540, 161448, 172980, 201810, 242172, 269080, 302715, 345960, 403620, 484344, 605430, 807240, 1210860, 2421720]

約数ペア:

[(1, 2421720), (2, 1210860), (3, 807240), (4, 605430), (5, 484344), (6, 403620), (7, 345960), (8, 302715), (9, 269080), (10, 242172), (12, 201810), (14, 172980), (15, 161448), (18, 134540), (20, 121086), (21, 115320), (24, 100905), (28, 86490), (30, 80724), (31, 78120), (35, 69192), (36, 67270), (40, 60543), (42, 57660), (45, 53816), (56, 43245), (60, 40362), (62, 39060), (63, 38440), (70, 34596), (72, 33635), (84, 28830), (90, 26908), (93, 26040), (105, 23064), (120, 20181), (124, 19530), (126, 19220), (140, 17298), (155, 15624), (168, 14415), (180, 13454), (186, 13020), (210, 11532), (217, 11160), (248, 9765), (252, 9610), (279, 8680), (280, 8649), (310, 7812), (315, 7688), (360, 6727), (372, 6510), (420, 5766), (434, 5580), (465, 5208), (504, 4805), (558, 4340), (620, 3906), (630, 3844), (651, 3720), (744, 3255), (840, 2883), (868, 2790), (930, 2604), (961, 2520), (1085, 2232), (1116, 2170), (1240, 1953), (1260, 1922), (1302, 1860), (1395, 1736)]