40642740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 129729600

約数和(自身を除く): 89086860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 59, 60, 86, 89, 90, 118, 129, 172, 177, 178, 180, 215, 236, 258, 267, 295, 354, 356, 387, 430, 445, 516, 531, 534, 590, 645, 708, 774, 801, 860, 885, 890, 1062, 1068, 1180, 1290, 1335, 1548, 1602, 1770, 1780, 1935, 2124, 2537, 2580, 2655, 2670, 3204, 3540, 3827, 3870, 4005, 5074, 5251, 5310, 5340, 7611, 7654, 7740, 8010, 10148, 10502, 10620, 11481, 12685, 15222, 15308, 15753, 16020, 19135, 21004, 22833, 22962, 25370, 26255, 30444, 31506, 34443, 38055, 38270, 45666, 45924, 47259, 50740, 52510, 57405, 63012, 68886, 76110, 76540, 78765, 91332, 94518, 105020, 114165, 114810, 137772, 152220, 157530, 172215, 189036, 225793, 228330, 229620, 236295, 315060, 344430, 451586, 456660, 472590, 677379, 688860, 903172, 945180, 1128965, 1354758, 2032137, 2257930, 2709516, 3386895, 4064274, 4515860, 6773790, 8128548, 10160685, 13547580, 20321370, 40642740]

約数ペア:

[(1, 40642740), (2, 20321370), (3, 13547580), (4, 10160685), (5, 8128548), (6, 6773790), (9, 4515860), (10, 4064274), (12, 3386895), (15, 2709516), (18, 2257930), (20, 2032137), (30, 1354758), (36, 1128965), (43, 945180), (45, 903172), (59, 688860), (60, 677379), (86, 472590), (89, 456660), (90, 451586), (118, 344430), (129, 315060), (172, 236295), (177, 229620), (178, 228330), (180, 225793), (215, 189036), (236, 172215), (258, 157530), (267, 152220), (295, 137772), (354, 114810), (356, 114165), (387, 105020), (430, 94518), (445, 91332), (516, 78765), (531, 76540), (534, 76110), (590, 68886), (645, 63012), (708, 57405), (774, 52510), (801, 50740), (860, 47259), (885, 45924), (890, 45666), (1062, 38270), (1068, 38055), (1180, 34443), (1290, 31506), (1335, 30444), (1548, 26255), (1602, 25370), (1770, 22962), (1780, 22833), (1935, 21004), (2124, 19135), (2537, 16020), (2580, 15753), (2655, 15308), (2670, 15222), (3204, 12685), (3540, 11481), (3827, 10620), (3870, 10502), (4005, 10148), (5074, 8010), (5251, 7740), (5310, 7654), (5340, 7611)]