19800507996

素因数分解:

$2^2\times 3^5\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{6761}}^1$

素因数の和:6934

約数の個数: 144

約数和(自身を含む): 54583296768

約数和(自身を除く): 34782788772

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 81, 92, 108, 131, 138, 162, 207, 243, 262, 276, 324, 393, 414, 486, 524, 621, 786, 828, 972, 1179, 1242, 1572, 1863, 2358, 2484, 3013, 3537, 3726, 4716, 5589, 6026, 6761, 7074, 7452, 9039, 10611, 11178, 12052, 13522, 14148, 18078, 20283, 21222, 22356, 27044, 27117, 31833, 36156, 40566, 42444, 54234, 60849, 63666, 81132, 81351, 108468, 121698, 127332, 155503, 162702, 182547, 243396, 244053, 311006, 325404, 365094, 466509, 488106, 547641, 622012, 730188, 732159, 885691, 933018, 976212, 1095282, 1399527, 1464318, 1642923, 1771382, 1866036, 2190564, 2657073, 2799054, 2928636, 3285846, 3542764, 4198581, 5314146, 5598108, 6571692, 7971219, 8397162, 10628292, 12595743, 15942438, 16794324, 20370893, 23913657, 25191486, 31884876, 37787229, 40741786, 47827314, 50382972, 61112679, 71740971, 75574458, 81483572, 95654628, 122225358, 143481942, 151148916, 183338037, 215222913, 244450716, 286963884, 366676074, 430445826, 550014111, 733352148, 860891652, 1100028222, 1650042333, 2200056444, 3300084666, 4950126999, 6600169332, 9900253998, 19800507996]

約数ペア:

[(1, 19800507996), (2, 9900253998), (3, 6600169332), (4, 4950126999), (6, 3300084666), (9, 2200056444), (12, 1650042333), (18, 1100028222), (23, 860891652), (27, 733352148), (36, 550014111), (46, 430445826), (54, 366676074), (69, 286963884), (81, 244450716), (92, 215222913), (108, 183338037), (131, 151148916), (138, 143481942), (162, 122225358), (207, 95654628), (243, 81483572), (262, 75574458), (276, 71740971), (324, 61112679), (393, 50382972), (414, 47827314), (486, 40741786), (524, 37787229), (621, 31884876), (786, 25191486), (828, 23913657), (972, 20370893), (1179, 16794324), (1242, 15942438), (1572, 12595743), (1863, 10628292), (2358, 8397162), (2484, 7971219), (3013, 6571692), (3537, 5598108), (3726, 5314146), (4716, 4198581), (5589, 3542764), (6026, 3285846), (6761, 2928636), (7074, 2799054), (7452, 2657073), (9039, 2190564), (10611, 1866036), (11178, 1771382), (12052, 1642923), (13522, 1464318), (14148, 1399527), (18078, 1095282), (20283, 976212), (21222, 933018), (22356, 885691), (27044, 732159), (27117, 730188), (31833, 622012), (36156, 547641), (40566, 488106), (42444, 466509), (54234, 365094), (60849, 325404), (63666, 311006), (81132, 244053), (81351, 243396), (108468, 182547), (121698, 162702), (127332, 155503)]