263799990

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:380

約数の個数: 160

約数和(自身を含む): 761603040

約数和(自身を除く): 497803050

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 61, 81, 90, 95, 114, 122, 135, 162, 171, 183, 190, 270, 281, 285, 305, 342, 366, 405, 513, 549, 562, 570, 610, 810, 843, 855, 915, 1026, 1098, 1159, 1405, 1539, 1647, 1686, 1710, 1830, 2318, 2529, 2565, 2745, 2810, 3078, 3294, 3477, 4215, 4941, 5058, 5130, 5339, 5490, 5795, 6954, 7587, 7695, 8235, 8430, 9882, 10431, 10678, 11590, 12645, 15174, 15390, 16017, 16470, 17141, 17385, 20862, 22761, 24705, 25290, 26695, 31293, 32034, 34282, 34770, 37935, 45522, 48051, 49410, 51423, 52155, 53390, 62586, 75870, 80085, 85705, 93879, 96102, 102846, 104310, 113805, 144153, 154269, 156465, 160170, 171410, 187758, 227610, 240255, 257115, 288306, 308538, 312930, 325679, 432459, 462807, 469395, 480510, 514230, 651358, 720765, 771345, 864918, 925614, 938790, 977037, 1388421, 1441530, 1542690, 1628395, 1954074, 2162295, 2314035, 2776842, 2931111, 3256790, 4324590, 4628070, 4885185, 5862222, 6942105, 8793333, 9770370, 13884210, 14655555, 17586666, 26379999, 29311110, 43966665, 52759998, 87933330, 131899995, 263799990]

約数ペア:

[(1, 263799990), (2, 131899995), (3, 87933330), (5, 52759998), (6, 43966665), (9, 29311110), (10, 26379999), (15, 17586666), (18, 14655555), (19, 13884210), (27, 9770370), (30, 8793333), (38, 6942105), (45, 5862222), (54, 4885185), (57, 4628070), (61, 4324590), (81, 3256790), (90, 2931111), (95, 2776842), (114, 2314035), (122, 2162295), (135, 1954074), (162, 1628395), (171, 1542690), (183, 1441530), (190, 1388421), (270, 977037), (281, 938790), (285, 925614), (305, 864918), (342, 771345), (366, 720765), (405, 651358), (513, 514230), (549, 480510), (562, 469395), (570, 462807), (610, 432459), (810, 325679), (843, 312930), (855, 308538), (915, 288306), (1026, 257115), (1098, 240255), (1159, 227610), (1405, 187758), (1539, 171410), (1647, 160170), (1686, 156465), (1710, 154269), (1830, 144153), (2318, 113805), (2529, 104310), (2565, 102846), (2745, 96102), (2810, 93879), (3078, 85705), (3294, 80085), (3477, 75870), (4215, 62586), (4941, 53390), (5058, 52155), (5130, 51423), (5339, 49410), (5490, 48051), (5795, 45522), (6954, 37935), (7587, 34770), (7695, 34282), (8235, 32034), (8430, 31293), (9882, 26695), (10431, 25290), (10678, 24705), (11590, 22761), (12645, 20862), (15174, 17385), (15390, 17141), (16017, 16470)]