77880060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:884

約数の個数: 144

約数和(自身を含む): 258515712

約数和(自身を除く): 180635652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 31, 34, 36, 45, 51, 60, 62, 68, 85, 90, 93, 102, 124, 153, 155, 170, 180, 186, 204, 255, 279, 306, 310, 340, 372, 465, 510, 527, 558, 612, 620, 765, 821, 930, 1020, 1054, 1116, 1395, 1530, 1581, 1642, 1860, 2108, 2463, 2635, 2790, 3060, 3162, 3284, 4105, 4743, 4926, 5270, 5580, 6324, 7389, 7905, 8210, 9486, 9852, 10540, 12315, 13957, 14778, 15810, 16420, 18972, 23715, 24630, 25451, 27914, 29556, 31620, 36945, 41871, 47430, 49260, 50902, 55828, 69785, 73890, 76353, 83742, 94860, 101804, 125613, 127255, 139570, 147780, 152706, 167484, 209355, 229059, 251226, 254510, 279140, 305412, 381765, 418710, 432667, 458118, 502452, 509020, 628065, 763530, 837420, 865334, 916236, 1145295, 1256130, 1298001, 1527060, 1730668, 2163335, 2290590, 2512260, 2596002, 3894003, 4326670, 4581180, 5192004, 6490005, 7788006, 8653340, 12980010, 15576012, 19470015, 25960020, 38940030, 77880060]

約数ペア:

[(1, 77880060), (2, 38940030), (3, 25960020), (4, 19470015), (5, 15576012), (6, 12980010), (9, 8653340), (10, 7788006), (12, 6490005), (15, 5192004), (17, 4581180), (18, 4326670), (20, 3894003), (30, 2596002), (31, 2512260), (34, 2290590), (36, 2163335), (45, 1730668), (51, 1527060), (60, 1298001), (62, 1256130), (68, 1145295), (85, 916236), (90, 865334), (93, 837420), (102, 763530), (124, 628065), (153, 509020), (155, 502452), (170, 458118), (180, 432667), (186, 418710), (204, 381765), (255, 305412), (279, 279140), (306, 254510), (310, 251226), (340, 229059), (372, 209355), (465, 167484), (510, 152706), (527, 147780), (558, 139570), (612, 127255), (620, 125613), (765, 101804), (821, 94860), (930, 83742), (1020, 76353), (1054, 73890), (1116, 69785), (1395, 55828), (1530, 50902), (1581, 49260), (1642, 47430), (1860, 41871), (2108, 36945), (2463, 31620), (2635, 29556), (2790, 27914), (3060, 25451), (3162, 24630), (3284, 23715), (4105, 18972), (4743, 16420), (4926, 15810), (5270, 14778), (5580, 13957), (6324, 12315), (7389, 10540), (7905, 9852), (8210, 9486)]