407178180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1697}}^1$

素因数の和:1786

約数の個数: 144

約数和(自身を含む): 1305368064

約数和(自身を除く): 898189884

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 43, 45, 60, 62, 86, 90, 93, 124, 129, 155, 172, 180, 186, 215, 258, 279, 310, 372, 387, 430, 465, 516, 558, 620, 645, 774, 860, 930, 1116, 1290, 1333, 1395, 1548, 1697, 1860, 1935, 2580, 2666, 2790, 3394, 3870, 3999, 5091, 5332, 5580, 6665, 6788, 7740, 7998, 8485, 10182, 11997, 13330, 15273, 15996, 16970, 19995, 20364, 23994, 25455, 26660, 30546, 33940, 39990, 47988, 50910, 52607, 59985, 61092, 72971, 76365, 79980, 101820, 105214, 119970, 145942, 152730, 157821, 210428, 218913, 239940, 263035, 291884, 305460, 315642, 364855, 437826, 473463, 526070, 631284, 656739, 729710, 789105, 875652, 946926, 1052140, 1094565, 1313478, 1459420, 1578210, 1893852, 2189130, 2262101, 2367315, 2626956, 3156420, 3283695, 4378260, 4524202, 4734630, 6567390, 6786303, 9048404, 9469260, 11310505, 13134780, 13572606, 20358909, 22621010, 27145212, 33931515, 40717818, 45242020, 67863030, 81435636, 101794545, 135726060, 203589090, 407178180]

約数ペア:

[(1, 407178180), (2, 203589090), (3, 135726060), (4, 101794545), (5, 81435636), (6, 67863030), (9, 45242020), (10, 40717818), (12, 33931515), (15, 27145212), (18, 22621010), (20, 20358909), (30, 13572606), (31, 13134780), (36, 11310505), (43, 9469260), (45, 9048404), (60, 6786303), (62, 6567390), (86, 4734630), (90, 4524202), (93, 4378260), (124, 3283695), (129, 3156420), (155, 2626956), (172, 2367315), (180, 2262101), (186, 2189130), (215, 1893852), (258, 1578210), (279, 1459420), (310, 1313478), (372, 1094565), (387, 1052140), (430, 946926), (465, 875652), (516, 789105), (558, 729710), (620, 656739), (645, 631284), (774, 526070), (860, 473463), (930, 437826), (1116, 364855), (1290, 315642), (1333, 305460), (1395, 291884), (1548, 263035), (1697, 239940), (1860, 218913), (1935, 210428), (2580, 157821), (2666, 152730), (2790, 145942), (3394, 119970), (3870, 105214), (3999, 101820), (5091, 79980), (5332, 76365), (5580, 72971), (6665, 61092), (6788, 59985), (7740, 52607), (7998, 50910), (8485, 47988), (10182, 39990), (11997, 33940), (13330, 30546), (15273, 26660), (15996, 25455), (16970, 23994), (19995, 20364)]