123661980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1229}}^1$

素因数の和:1300

約数の個数: 144

約数和(自身を含む): 413693280

約数和(自身を除く): 290031300

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, 860, 1118, 1170, 1229, 1290, 1548, 1677, 1935, 2236, 2340, 2458, 2580, 2795, 3354, 3687, 3870, 4916, 5031, 5590, 6145, 6708, 7374, 7740, 8385, 10062, 11061, 11180, 12290, 14748, 15977, 16770, 18435, 20124, 22122, 24580, 25155, 31954, 33540, 36870, 44244, 47931, 50310, 52847, 55305, 63908, 73740, 79885, 95862, 100620, 105694, 110610, 143793, 158541, 159770, 191724, 211388, 221220, 239655, 264235, 287586, 317082, 319540, 475623, 479310, 528470, 575172, 634164, 687011, 718965, 792705, 951246, 958620, 1056940, 1374022, 1437930, 1585410, 1902492, 2061033, 2378115, 2748044, 2875860, 3170820, 3435055, 4122066, 4756230, 6183099, 6870110, 8244132, 9512460, 10305165, 12366198, 13740220, 20610330, 24732396, 30915495, 41220660, 61830990, 123661980]

約数ペア:

[(1, 123661980), (2, 61830990), (3, 41220660), (4, 30915495), (5, 24732396), (6, 20610330), (9, 13740220), (10, 12366198), (12, 10305165), (13, 9512460), (15, 8244132), (18, 6870110), (20, 6183099), (26, 4756230), (30, 4122066), (36, 3435055), (39, 3170820), (43, 2875860), (45, 2748044), (52, 2378115), (60, 2061033), (65, 1902492), (78, 1585410), (86, 1437930), (90, 1374022), (117, 1056940), (129, 958620), (130, 951246), (156, 792705), (172, 718965), (180, 687011), (195, 634164), (215, 575172), (234, 528470), (258, 479310), (260, 475623), (387, 319540), (390, 317082), (430, 287586), (468, 264235), (516, 239655), (559, 221220), (585, 211388), (645, 191724), (774, 159770), (780, 158541), (860, 143793), (1118, 110610), (1170, 105694), (1229, 100620), (1290, 95862), (1548, 79885), (1677, 73740), (1935, 63908), (2236, 55305), (2340, 52847), (2458, 50310), (2580, 47931), (2795, 44244), (3354, 36870), (3687, 33540), (3870, 31954), (4916, 25155), (5031, 24580), (5590, 22122), (6145, 20124), (6708, 18435), (7374, 16770), (7740, 15977), (8385, 14748), (10062, 12290), (11061, 11180)]