257847240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3449}}^1$

素因数の和:3559

約数の個数: 128

約数和(自身を含む): 894240000

約数和(自身を除く): 636392760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 89, 105, 120, 140, 168, 178, 210, 267, 280, 356, 420, 445, 534, 623, 712, 840, 890, 1068, 1246, 1335, 1780, 1869, 2136, 2492, 2670, 3115, 3449, 3560, 3738, 4984, 5340, 6230, 6898, 7476, 9345, 10347, 10680, 12460, 13796, 14952, 17245, 18690, 20694, 24143, 24920, 27592, 34490, 37380, 41388, 48286, 51735, 68980, 72429, 74760, 82776, 96572, 103470, 120715, 137960, 144858, 193144, 206940, 241430, 289716, 306961, 362145, 413880, 482860, 579432, 613922, 724290, 920883, 965720, 1227844, 1448580, 1534805, 1841766, 2148727, 2455688, 2897160, 3069610, 3683532, 4297454, 4604415, 6139220, 6446181, 7367064, 8594908, 9208830, 10743635, 12278440, 12892362, 17189816, 18417660, 21487270, 25784724, 32230905, 36835320, 42974540, 51569448, 64461810, 85949080, 128923620, 257847240]

約数ペア:

[(1, 257847240), (2, 128923620), (3, 85949080), (4, 64461810), (5, 51569448), (6, 42974540), (7, 36835320), (8, 32230905), (10, 25784724), (12, 21487270), (14, 18417660), (15, 17189816), (20, 12892362), (21, 12278440), (24, 10743635), (28, 9208830), (30, 8594908), (35, 7367064), (40, 6446181), (42, 6139220), (56, 4604415), (60, 4297454), (70, 3683532), (84, 3069610), (89, 2897160), (105, 2455688), (120, 2148727), (140, 1841766), (168, 1534805), (178, 1448580), (210, 1227844), (267, 965720), (280, 920883), (356, 724290), (420, 613922), (445, 579432), (534, 482860), (623, 413880), (712, 362145), (840, 306961), (890, 289716), (1068, 241430), (1246, 206940), (1335, 193144), (1780, 144858), (1869, 137960), (2136, 120715), (2492, 103470), (2670, 96572), (3115, 82776), (3449, 74760), (3560, 72429), (3738, 68980), (4984, 51735), (5340, 48286), (6230, 41388), (6898, 37380), (7476, 34490), (9345, 27592), (10347, 24920), (10680, 24143), (12460, 20694), (13796, 18690), (14952, 17245)]