291545240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2663}}^1$

素因数の和:2721

約数の個数: 128

約数和(自身を含む): 828610560

約数和(自身を除く): 537065320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 23, 28, 34, 35, 40, 46, 56, 68, 70, 85, 92, 115, 119, 136, 140, 161, 170, 184, 230, 238, 280, 322, 340, 391, 460, 476, 595, 644, 680, 782, 805, 920, 952, 1190, 1288, 1564, 1610, 1955, 2380, 2663, 2737, 3128, 3220, 3910, 4760, 5326, 5474, 6440, 7820, 10652, 10948, 13315, 13685, 15640, 18641, 21304, 21896, 26630, 27370, 37282, 45271, 53260, 54740, 61249, 74564, 90542, 93205, 106520, 109480, 122498, 149128, 181084, 186410, 226355, 244996, 306245, 316897, 362168, 372820, 428743, 452710, 489992, 612490, 633794, 745640, 857486, 905420, 1041233, 1224980, 1267588, 1584485, 1714972, 1810840, 2082466, 2143715, 2449960, 2535176, 3168970, 3429944, 4164932, 4287430, 5206165, 6337940, 7288631, 8329864, 8574860, 10412330, 12675880, 14577262, 17149720, 20824660, 29154524, 36443155, 41649320, 58309048, 72886310, 145772620, 291545240]

約数ペア:

[(1, 291545240), (2, 145772620), (4, 72886310), (5, 58309048), (7, 41649320), (8, 36443155), (10, 29154524), (14, 20824660), (17, 17149720), (20, 14577262), (23, 12675880), (28, 10412330), (34, 8574860), (35, 8329864), (40, 7288631), (46, 6337940), (56, 5206165), (68, 4287430), (70, 4164932), (85, 3429944), (92, 3168970), (115, 2535176), (119, 2449960), (136, 2143715), (140, 2082466), (161, 1810840), (170, 1714972), (184, 1584485), (230, 1267588), (238, 1224980), (280, 1041233), (322, 905420), (340, 857486), (391, 745640), (460, 633794), (476, 612490), (595, 489992), (644, 452710), (680, 428743), (782, 372820), (805, 362168), (920, 316897), (952, 306245), (1190, 244996), (1288, 226355), (1564, 186410), (1610, 181084), (1955, 149128), (2380, 122498), (2663, 109480), (2737, 106520), (3128, 93205), (3220, 90542), (3910, 74564), (4760, 61249), (5326, 54740), (5474, 53260), (6440, 45271), (7820, 37282), (10652, 27370), (10948, 26630), (13315, 21896), (13685, 21304), (15640, 18641)]