420056780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{761}}^1$

素因数の和:987

約数の個数: 96

約数和(自身を含む): 1043074368

約数和(自身を除く): 623017588

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 193, 220, 260, 286, 386, 572, 715, 761, 772, 965, 1430, 1522, 1930, 2123, 2509, 2860, 3044, 3805, 3860, 4246, 5018, 7610, 8371, 8492, 9893, 10036, 10615, 12545, 15220, 16742, 19786, 21230, 25090, 27599, 33484, 39572, 41855, 42460, 49465, 50180, 55198, 83710, 98930, 108823, 110396, 137995, 146873, 167420, 197860, 217646, 275990, 293746, 435292, 544115, 551980, 587492, 734365, 1088230, 1468730, 1615603, 1909349, 2176460, 2937460, 3231206, 3818698, 6462412, 7637396, 8078015, 9546745, 16156030, 19093490, 21002839, 32312060, 38186980, 42005678, 84011356, 105014195, 210028390, 420056780]

約数ペア:

[(1, 420056780), (2, 210028390), (4, 105014195), (5, 84011356), (10, 42005678), (11, 38186980), (13, 32312060), (20, 21002839), (22, 19093490), (26, 16156030), (44, 9546745), (52, 8078015), (55, 7637396), (65, 6462412), (110, 3818698), (130, 3231206), (143, 2937460), (193, 2176460), (220, 1909349), (260, 1615603), (286, 1468730), (386, 1088230), (572, 734365), (715, 587492), (761, 551980), (772, 544115), (965, 435292), (1430, 293746), (1522, 275990), (1930, 217646), (2123, 197860), (2509, 167420), (2860, 146873), (3044, 137995), (3805, 110396), (3860, 108823), (4246, 98930), (5018, 83710), (7610, 55198), (8371, 50180), (8492, 49465), (9893, 42460), (10036, 41855), (10615, 39572), (12545, 33484), (15220, 27599), (16742, 25090), (19786, 21230)]