90282780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{907}}^1$

素因数の和:1008

約数の個数: 144

約数和(自身を含む): 317291520

約数和(自身を除く): 227008740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 79, 84, 90, 105, 126, 140, 158, 180, 210, 237, 252, 315, 316, 395, 420, 474, 553, 630, 711, 790, 907, 948, 1106, 1185, 1260, 1422, 1580, 1659, 1814, 2212, 2370, 2721, 2765, 2844, 3318, 3555, 3628, 4535, 4740, 4977, 5442, 5530, 6349, 6636, 7110, 8163, 8295, 9070, 9954, 10884, 11060, 12698, 13605, 14220, 16326, 16590, 18140, 19047, 19908, 24885, 25396, 27210, 31745, 32652, 33180, 38094, 40815, 49770, 54420, 57141, 63490, 71653, 76188, 81630, 95235, 99540, 114282, 126980, 143306, 163260, 190470, 214959, 228564, 285705, 286612, 358265, 380940, 429918, 501571, 571410, 644877, 716530, 859836, 1003142, 1074795, 1142820, 1289754, 1433060, 1504713, 2006284, 2149590, 2507855, 2579508, 3009426, 3224385, 4299180, 4514139, 5015710, 6018852, 6448770, 7523565, 9028278, 10031420, 12897540, 15047130, 18056556, 22570695, 30094260, 45141390, 90282780]

約数ペア:

[(1, 90282780), (2, 45141390), (3, 30094260), (4, 22570695), (5, 18056556), (6, 15047130), (7, 12897540), (9, 10031420), (10, 9028278), (12, 7523565), (14, 6448770), (15, 6018852), (18, 5015710), (20, 4514139), (21, 4299180), (28, 3224385), (30, 3009426), (35, 2579508), (36, 2507855), (42, 2149590), (45, 2006284), (60, 1504713), (63, 1433060), (70, 1289754), (79, 1142820), (84, 1074795), (90, 1003142), (105, 859836), (126, 716530), (140, 644877), (158, 571410), (180, 501571), (210, 429918), (237, 380940), (252, 358265), (315, 286612), (316, 285705), (395, 228564), (420, 214959), (474, 190470), (553, 163260), (630, 143306), (711, 126980), (790, 114282), (907, 99540), (948, 95235), (1106, 81630), (1185, 76188), (1260, 71653), (1422, 63490), (1580, 57141), (1659, 54420), (1814, 49770), (2212, 40815), (2370, 38094), (2721, 33180), (2765, 32652), (2844, 31745), (3318, 27210), (3555, 25396), (3628, 24885), (4535, 19908), (4740, 19047), (4977, 18140), (5442, 16590), (5530, 16326), (6349, 14220), (6636, 13605), (7110, 12698), (8163, 11060), (8295, 10884), (9070, 9954)]