12979980

素因数分解:

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

素因数の和:117

約数の個数: 144

約数和(自身を含む): 44523360

約数和(自身を除く): 31543380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 43, 45, 52, 54, 60, 65, 78, 86, 90, 108, 117, 129, 130, 135, 156, 172, 180, 195, 215, 234, 258, 260, 270, 351, 387, 390, 430, 468, 516, 540, 559, 585, 645, 702, 774, 780, 860, 1118, 1161, 1170, 1290, 1404, 1548, 1677, 1755, 1849, 1935, 2236, 2322, 2340, 2580, 2795, 3354, 3510, 3698, 3870, 4644, 5031, 5547, 5590, 5805, 6708, 7020, 7396, 7740, 8385, 9245, 10062, 11094, 11180, 11610, 15093, 16641, 16770, 18490, 20124, 22188, 23220, 24037, 25155, 27735, 30186, 33282, 33540, 36980, 48074, 49923, 50310, 55470, 60372, 66564, 72111, 75465, 83205, 96148, 99846, 100620, 110940, 120185, 144222, 150930, 166410, 199692, 216333, 240370, 249615, 288444, 301860, 332820, 360555, 432666, 480740, 499230, 648999, 721110, 865332, 998460, 1081665, 1297998, 1442220, 2163330, 2595996, 3244995, 4326660, 6489990, 12979980]

約数ペア:

[(1, 12979980), (2, 6489990), (3, 4326660), (4, 3244995), (5, 2595996), (6, 2163330), (9, 1442220), (10, 1297998), (12, 1081665), (13, 998460), (15, 865332), (18, 721110), (20, 648999), (26, 499230), (27, 480740), (30, 432666), (36, 360555), (39, 332820), (43, 301860), (45, 288444), (52, 249615), (54, 240370), (60, 216333), (65, 199692), (78, 166410), (86, 150930), (90, 144222), (108, 120185), (117, 110940), (129, 100620), (130, 99846), (135, 96148), (156, 83205), (172, 75465), (180, 72111), (195, 66564), (215, 60372), (234, 55470), (258, 50310), (260, 49923), (270, 48074), (351, 36980), (387, 33540), (390, 33282), (430, 30186), (468, 27735), (516, 25155), (540, 24037), (559, 23220), (585, 22188), (645, 20124), (702, 18490), (774, 16770), (780, 16641), (860, 15093), (1118, 11610), (1161, 11180), (1170, 11094), (1290, 10062), (1404, 9245), (1548, 8385), (1677, 7740), (1755, 7396), (1849, 7020), (1935, 6708), (2236, 5805), (2322, 5590), (2340, 5547), (2580, 5031), (2795, 4644), (3354, 3870), (3510, 3698)]