40578928

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:426

約数の個数: 60

約数和(自身を含む): 87364200

約数和(自身を除く): 46785272

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 169, 172, 208, 338, 344, 349, 559, 676, 688, 698, 1118, 1352, 1396, 2236, 2704, 2792, 4472, 4537, 5584, 7267, 8944, 9074, 14534, 15007, 18148, 29068, 30014, 36296, 58136, 58981, 60028, 72592, 116272, 117962, 120056, 195091, 235924, 240112, 390182, 471848, 780364, 943696, 1560728, 2536183, 3121456, 5072366, 10144732, 20289464, 40578928]

約数ペア:

[(1, 40578928), (2, 20289464), (4, 10144732), (8, 5072366), (13, 3121456), (16, 2536183), (26, 1560728), (43, 943696), (52, 780364), (86, 471848), (104, 390182), (169, 240112), (172, 235924), (208, 195091), (338, 120056), (344, 117962), (349, 116272), (559, 72592), (676, 60028), (688, 58981), (698, 58136), (1118, 36296), (1352, 30014), (1396, 29068), (2236, 18148), (2704, 15007), (2792, 14534), (4472, 9074), (4537, 8944), (5584, 7267)]