18129420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 180

約数和(自身を含む): 61959744

約数和(自身を除く): 43830324

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 31, 36, 38, 45, 54, 57, 60, 62, 76, 81, 90, 93, 95, 108, 114, 124, 135, 155, 162, 171, 180, 186, 190, 228, 270, 279, 285, 310, 324, 342, 361, 372, 380, 405, 465, 513, 540, 558, 570, 589, 620, 684, 722, 810, 837, 855, 930, 1026, 1083, 1116, 1140, 1178, 1395, 1444, 1539, 1620, 1674, 1710, 1767, 1805, 1860, 2052, 2166, 2356, 2511, 2565, 2790, 2945, 3078, 3249, 3348, 3420, 3534, 3610, 4185, 4332, 5022, 5130, 5301, 5415, 5580, 5890, 6156, 6498, 7068, 7220, 7695, 8370, 8835, 9747, 10044, 10260, 10602, 10830, 11191, 11780, 12555, 12996, 15390, 15903, 16245, 16740, 17670, 19494, 21204, 21660, 22382, 25110, 26505, 29241, 30780, 31806, 32490, 33573, 35340, 38988, 44764, 47709, 48735, 50220, 53010, 55955, 58482, 63612, 64980, 67146, 79515, 95418, 97470, 100719, 106020, 111910, 116964, 134292, 146205, 159030, 167865, 190836, 194940, 201438, 223820, 238545, 292410, 302157, 318060, 335730, 402876, 477090, 503595, 584820, 604314, 671460, 906471, 954180, 1007190, 1208628, 1510785, 1812942, 2014380, 3021570, 3625884, 4532355, 6043140, 9064710, 18129420]

約数ペア:

[(1, 18129420), (2, 9064710), (3, 6043140), (4, 4532355), (5, 3625884), (6, 3021570), (9, 2014380), (10, 1812942), (12, 1510785), (15, 1208628), (18, 1007190), (19, 954180), (20, 906471), (27, 671460), (30, 604314), (31, 584820), (36, 503595), (38, 477090), (45, 402876), (54, 335730), (57, 318060), (60, 302157), (62, 292410), (76, 238545), (81, 223820), (90, 201438), (93, 194940), (95, 190836), (108, 167865), (114, 159030), (124, 146205), (135, 134292), (155, 116964), (162, 111910), (171, 106020), (180, 100719), (186, 97470), (190, 95418), (228, 79515), (270, 67146), (279, 64980), (285, 63612), (310, 58482), (324, 55955), (342, 53010), (361, 50220), (372, 48735), (380, 47709), (405, 44764), (465, 38988), (513, 35340), (540, 33573), (558, 32490), (570, 31806), (589, 30780), (620, 29241), (684, 26505), (722, 25110), (810, 22382), (837, 21660), (855, 21204), (930, 19494), (1026, 17670), (1083, 16740), (1116, 16245), (1140, 15903), (1178, 15390), (1395, 12996), (1444, 12555), (1539, 11780), (1620, 11191), (1674, 10830), (1710, 10602), (1767, 10260), (1805, 10044), (1860, 9747), (2052, 8835), (2166, 8370), (2356, 7695), (2511, 7220), (2565, 7068), (2790, 6498), (2945, 6156), (3078, 5890), (3249, 5580), (3348, 5415), (3420, 5301), (3534, 5130), (3610, 5022), (4185, 4332)]