81120156

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{1571}}^1$

素因数の和:1922

約数の個数: 48

約数和(自身を含む): 204586368

約数和(自身を除く): 123466212

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 331, 662, 993, 1324, 1571, 1986, 3142, 3972, 4303, 4713, 6284, 8606, 9426, 12909, 17212, 18852, 20423, 25818, 40846, 51636, 61269, 81692, 122538, 245076, 520001, 1040002, 1560003, 2080004, 3120006, 6240012, 6760013, 13520026, 20280039, 27040052, 40560078, 81120156]

約数ペア:

[(1, 81120156), (2, 40560078), (3, 27040052), (4, 20280039), (6, 13520026), (12, 6760013), (13, 6240012), (26, 3120006), (39, 2080004), (52, 1560003), (78, 1040002), (156, 520001), (331, 245076), (662, 122538), (993, 81692), (1324, 61269), (1571, 51636), (1986, 40846), (3142, 25818), (3972, 20423), (4303, 18852), (4713, 17212), (6284, 12909), (8606, 9426)]