87445980

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{947}}^1$

素因数の和:990

約数の個数: 144

約数和(自身を含む): 289860480

約数和(自身を除く): 202414500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 243, 270, 285, 324, 342, 380, 405, 486, 513, 540, 570, 684, 810, 855, 947, 972, 1026, 1140, 1215, 1539, 1620, 1710, 1894, 2052, 2430, 2565, 2841, 3078, 3420, 3788, 4617, 4735, 4860, 5130, 5682, 6156, 7695, 8523, 9234, 9470, 10260, 11364, 14205, 15390, 17046, 17993, 18468, 18940, 23085, 25569, 28410, 30780, 34092, 35986, 42615, 46170, 51138, 53979, 56820, 71972, 76707, 85230, 89965, 92340, 102276, 107958, 127845, 153414, 161937, 170460, 179930, 215916, 230121, 255690, 269895, 306828, 323874, 359860, 383535, 460242, 485811, 511380, 539790, 647748, 767070, 809685, 920484, 971622, 1079580, 1150605, 1457433, 1534140, 1619370, 1943244, 2301210, 2429055, 2914866, 3238740, 4372299, 4602420, 4858110, 5829732, 7287165, 8744598, 9716220, 14574330, 17489196, 21861495, 29148660, 43722990, 87445980]

約数ペア:

[(1, 87445980), (2, 43722990), (3, 29148660), (4, 21861495), (5, 17489196), (6, 14574330), (9, 9716220), (10, 8744598), (12, 7287165), (15, 5829732), (18, 4858110), (19, 4602420), (20, 4372299), (27, 3238740), (30, 2914866), (36, 2429055), (38, 2301210), (45, 1943244), (54, 1619370), (57, 1534140), (60, 1457433), (76, 1150605), (81, 1079580), (90, 971622), (95, 920484), (108, 809685), (114, 767070), (135, 647748), (162, 539790), (171, 511380), (180, 485811), (190, 460242), (228, 383535), (243, 359860), (270, 323874), (285, 306828), (324, 269895), (342, 255690), (380, 230121), (405, 215916), (486, 179930), (513, 170460), (540, 161937), (570, 153414), (684, 127845), (810, 107958), (855, 102276), (947, 92340), (972, 89965), (1026, 85230), (1140, 76707), (1215, 71972), (1539, 56820), (1620, 53979), (1710, 51138), (1894, 46170), (2052, 42615), (2430, 35986), (2565, 34092), (2841, 30780), (3078, 28410), (3420, 25569), (3788, 23085), (4617, 18940), (4735, 18468), (4860, 17993), (5130, 17046), (5682, 15390), (6156, 14205), (7695, 11364), (8523, 10260), (9234, 9470)]