248256540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{4021}}^1$

素因数の和:4057

約数の個数: 144

約数和(自身を含む): 878404800

約数和(自身を除く): 630148260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 343, 420, 441, 490, 588, 630, 686, 735, 882, 980, 1029, 1260, 1372, 1470, 1715, 1764, 2058, 2205, 2940, 3087, 3430, 4021, 4116, 4410, 5145, 6174, 6860, 8042, 8820, 10290, 12063, 12348, 15435, 16084, 20105, 20580, 24126, 28147, 30870, 36189, 40210, 48252, 56294, 60315, 61740, 72378, 80420, 84441, 112588, 120630, 140735, 144756, 168882, 180945, 197029, 241260, 253323, 281470, 337764, 361890, 394058, 422205, 506646, 562940, 591087, 723780, 788116, 844410, 985145, 1013292, 1182174, 1266615, 1379203, 1688820, 1773261, 1970290, 2364348, 2533230, 2758406, 2955435, 3546522, 3940580, 4137609, 5066460, 5516812, 5910870, 6896015, 7093044, 8275218, 8866305, 11821740, 12412827, 13792030, 16550436, 17732610, 20688045, 24825654, 27584060, 35465220, 41376090, 49651308, 62064135, 82752180, 124128270, 248256540]

約数ペア:

[(1, 248256540), (2, 124128270), (3, 82752180), (4, 62064135), (5, 49651308), (6, 41376090), (7, 35465220), (9, 27584060), (10, 24825654), (12, 20688045), (14, 17732610), (15, 16550436), (18, 13792030), (20, 12412827), (21, 11821740), (28, 8866305), (30, 8275218), (35, 7093044), (36, 6896015), (42, 5910870), (45, 5516812), (49, 5066460), (60, 4137609), (63, 3940580), (70, 3546522), (84, 2955435), (90, 2758406), (98, 2533230), (105, 2364348), (126, 1970290), (140, 1773261), (147, 1688820), (180, 1379203), (196, 1266615), (210, 1182174), (245, 1013292), (252, 985145), (294, 844410), (315, 788116), (343, 723780), (420, 591087), (441, 562940), (490, 506646), (588, 422205), (630, 394058), (686, 361890), (735, 337764), (882, 281470), (980, 253323), (1029, 241260), (1260, 197029), (1372, 180945), (1470, 168882), (1715, 144756), (1764, 140735), (2058, 120630), (2205, 112588), (2940, 84441), (3087, 80420), (3430, 72378), (4021, 61740), (4116, 60315), (4410, 56294), (5145, 48252), (6174, 40210), (6860, 36189), (8042, 30870), (8820, 28147), (10290, 24126), (12063, 20580), (12348, 20105), (15435, 16084)]