78521638

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 129729600

約数和(自身を除く): 51207962

約数列:

[1, 2, 13, 26, 103, 109, 206, 218, 269, 538, 1339, 1417, 2678, 2834, 3497, 6994, 11227, 22454, 27707, 29321, 55414, 58642, 145951, 291902, 360191, 381173, 720382, 762346, 3020063, 6040126, 39260819, 78521638]

約数ペア:

[(1, 78521638), (2, 39260819), (13, 6040126), (26, 3020063), (103, 762346), (109, 720382), (206, 381173), (218, 360191), (269, 291902), (538, 145951), (1339, 58642), (1417, 55414), (2678, 29321), (2834, 27707), (3497, 22454), (6994, 11227)]