1331201320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{8191}}^1$

素因数の和:8458

約数の個数: 64

約数和(自身を含む): 3185049600

約数和(自身を除く): 1853848280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 239, 340, 478, 680, 956, 1195, 1912, 2390, 4063, 4780, 8126, 8191, 9560, 16252, 16382, 20315, 32504, 32764, 40630, 40955, 65528, 81260, 81910, 139247, 162520, 163820, 278494, 327640, 556988, 696235, 1113976, 1392470, 1957649, 2784940, 3915298, 5569880, 7830596, 9788245, 15661192, 19576490, 33280033, 39152980, 66560066, 78305960, 133120132, 166400165, 266240264, 332800330, 665600660, 1331201320]

約数ペア:

[(1, 1331201320), (2, 665600660), (4, 332800330), (5, 266240264), (8, 166400165), (10, 133120132), (17, 78305960), (20, 66560066), (34, 39152980), (40, 33280033), (68, 19576490), (85, 15661192), (136, 9788245), (170, 7830596), (239, 5569880), (340, 3915298), (478, 2784940), (680, 1957649), (956, 1392470), (1195, 1113976), (1912, 696235), (2390, 556988), (4063, 327640), (4780, 278494), (8126, 163820), (8191, 162520), (9560, 139247), (16252, 81910), (16382, 81260), (20315, 65528), (32504, 40955), (32764, 40630)]