20329785

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:196

約数の個数: 80

約数和(自身を含む): 42653952

約数和(自身を除く): 22324167

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 71, 81, 101, 105, 135, 189, 213, 303, 315, 355, 405, 497, 505, 567, 639, 707, 909, 945, 1065, 1491, 1515, 1917, 2121, 2485, 2727, 2835, 3195, 3535, 4473, 4545, 5751, 6363, 7171, 7455, 8181, 9585, 10605, 13419, 13635, 19089, 21513, 22365, 28755, 31815, 35855, 40257, 40905, 50197, 57267, 64539, 67095, 95445, 107565, 150591, 193617, 201285, 250985, 286335, 322695, 451773, 580851, 752955, 968085, 1355319, 2258865, 2904255, 4065957, 6776595, 20329785]

約数ペア:

[(1, 20329785), (3, 6776595), (5, 4065957), (7, 2904255), (9, 2258865), (15, 1355319), (21, 968085), (27, 752955), (35, 580851), (45, 451773), (63, 322695), (71, 286335), (81, 250985), (101, 201285), (105, 193617), (135, 150591), (189, 107565), (213, 95445), (303, 67095), (315, 64539), (355, 57267), (405, 50197), (497, 40905), (505, 40257), (567, 35855), (639, 31815), (707, 28755), (909, 22365), (945, 21513), (1065, 19089), (1491, 13635), (1515, 13419), (1917, 10605), (2121, 9585), (2485, 8181), (2727, 7455), (2835, 7171), (3195, 6363), (3535, 5751), (4473, 4545)]