81602820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{811}}^1$

素因数の和:882

約数の個数: 144

約数和(自身を含む): 273104832

約数和(自身を除く): 191502012

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 43, 45, 52, 60, 65, 78, 86, 90, 117, 129, 130, 156, 172, 180, 195, 215, 234, 258, 260, 387, 390, 430, 468, 516, 559, 585, 645, 774, 780, 811, 860, 1118, 1170, 1290, 1548, 1622, 1677, 1935, 2236, 2340, 2433, 2580, 2795, 3244, 3354, 3870, 4055, 4866, 5031, 5590, 6708, 7299, 7740, 8110, 8385, 9732, 10062, 10543, 11180, 12165, 14598, 16220, 16770, 20124, 21086, 24330, 25155, 29196, 31629, 33540, 34873, 36495, 42172, 48660, 50310, 52715, 63258, 69746, 72990, 94887, 100620, 104619, 105430, 126516, 139492, 145980, 158145, 174365, 189774, 209238, 210860, 313857, 316290, 348730, 379548, 418476, 453349, 474435, 523095, 627714, 632580, 697460, 906698, 948870, 1046190, 1255428, 1360047, 1569285, 1813396, 1897740, 2092380, 2266745, 2720094, 3138570, 4080141, 4533490, 5440188, 6277140, 6800235, 8160282, 9066980, 13600470, 16320564, 20400705, 27200940, 40801410, 81602820]

約数ペア:

[(1, 81602820), (2, 40801410), (3, 27200940), (4, 20400705), (5, 16320564), (6, 13600470), (9, 9066980), (10, 8160282), (12, 6800235), (13, 6277140), (15, 5440188), (18, 4533490), (20, 4080141), (26, 3138570), (30, 2720094), (36, 2266745), (39, 2092380), (43, 1897740), (45, 1813396), (52, 1569285), (60, 1360047), (65, 1255428), (78, 1046190), (86, 948870), (90, 906698), (117, 697460), (129, 632580), (130, 627714), (156, 523095), (172, 474435), (180, 453349), (195, 418476), (215, 379548), (234, 348730), (258, 316290), (260, 313857), (387, 210860), (390, 209238), (430, 189774), (468, 174365), (516, 158145), (559, 145980), (585, 139492), (645, 126516), (774, 105430), (780, 104619), (811, 100620), (860, 94887), (1118, 72990), (1170, 69746), (1290, 63258), (1548, 52715), (1622, 50310), (1677, 48660), (1935, 42172), (2236, 36495), (2340, 34873), (2433, 33540), (2580, 31629), (2795, 29196), (3244, 25155), (3354, 24330), (3870, 21086), (4055, 20124), (4866, 16770), (5031, 16220), (5590, 14598), (6708, 12165), (7299, 11180), (7740, 10543), (8110, 10062), (8385, 9732)]