319754253

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 548420256

約数和(自身を除く): 228666003

約数列:

[1, 3, 7, 13, 21, 39, 49, 61, 91, 147, 169, 183, 211, 273, 427, 507, 633, 637, 793, 1183, 1281, 1477, 1911, 2379, 2743, 2989, 3549, 4431, 5551, 8229, 8281, 8967, 10309, 10339, 12871, 16653, 19201, 24843, 30927, 31017, 35659, 38613, 38857, 57603, 72163, 90097, 106977, 116571, 134407, 167323, 216489, 249613, 270291, 403221, 501969, 505141, 630679, 748839, 1171261, 1515423, 1747291, 1892037, 2175199, 3513783, 5241873, 6525597, 8198827, 15226393, 24596481, 45679179, 106584751, 319754253]

約数ペア:

[(1, 319754253), (3, 106584751), (7, 45679179), (13, 24596481), (21, 15226393), (39, 8198827), (49, 6525597), (61, 5241873), (91, 3513783), (147, 2175199), (169, 1892037), (183, 1747291), (211, 1515423), (273, 1171261), (427, 748839), (507, 630679), (633, 505141), (637, 501969), (793, 403221), (1183, 270291), (1281, 249613), (1477, 216489), (1911, 167323), (2379, 134407), (2743, 116571), (2989, 106977), (3549, 90097), (4431, 72163), (5551, 57603), (8229, 38857), (8281, 38613), (8967, 35659), (10309, 31017), (10339, 30927), (12871, 24843), (16653, 19201)]