489452920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{461}}^1$

素因数の和:629

約数の個数: 128

約数和(自身を含む): 1277337600

約数和(自身を除く): 787884680

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 127, 152, 190, 209, 220, 254, 380, 418, 440, 461, 508, 635, 760, 836, 922, 1016, 1045, 1270, 1397, 1672, 1844, 2090, 2305, 2413, 2540, 2794, 3688, 4180, 4610, 4826, 5071, 5080, 5588, 6985, 8360, 8759, 9220, 9652, 10142, 11176, 12065, 13970, 17518, 18440, 19304, 20284, 24130, 25355, 26543, 27940, 35036, 40568, 43795, 48260, 50710, 53086, 55880, 58547, 70072, 87590, 96349, 96520, 101420, 106172, 117094, 132715, 175180, 192698, 202840, 212344, 234188, 265430, 292735, 350360, 385396, 468376, 481745, 530860, 585470, 644017, 770792, 963490, 1061720, 1112393, 1170940, 1288034, 1926980, 2224786, 2341880, 2576068, 3220085, 3853960, 4449572, 5152136, 5561965, 6440170, 8899144, 11123930, 12236323, 12880340, 22247860, 24472646, 25760680, 44495720, 48945292, 61181615, 97890584, 122363230, 244726460, 489452920]

約数ペア:

[(1, 489452920), (2, 244726460), (4, 122363230), (5, 97890584), (8, 61181615), (10, 48945292), (11, 44495720), (19, 25760680), (20, 24472646), (22, 22247860), (38, 12880340), (40, 12236323), (44, 11123930), (55, 8899144), (76, 6440170), (88, 5561965), (95, 5152136), (110, 4449572), (127, 3853960), (152, 3220085), (190, 2576068), (209, 2341880), (220, 2224786), (254, 1926980), (380, 1288034), (418, 1170940), (440, 1112393), (461, 1061720), (508, 963490), (635, 770792), (760, 644017), (836, 585470), (922, 530860), (1016, 481745), (1045, 468376), (1270, 385396), (1397, 350360), (1672, 292735), (1844, 265430), (2090, 234188), (2305, 212344), (2413, 202840), (2540, 192698), (2794, 175180), (3688, 132715), (4180, 117094), (4610, 106172), (4826, 101420), (5071, 96520), (5080, 96349), (5588, 87590), (6985, 70072), (8360, 58547), (8759, 55880), (9220, 53086), (9652, 50710), (10142, 48260), (11176, 43795), (12065, 40568), (13970, 35036), (17518, 27940), (18440, 26543), (19304, 25355), (20284, 24130)]