1330407920

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1\times {\mathrm{661}}^1$

素因数の和:994

約数の個数: 80

約数和(自身を含む): 3137403360

約数和(自身を除く): 1806995440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 181, 278, 362, 556, 661, 695, 724, 905, 1112, 1322, 1390, 1448, 1810, 2224, 2644, 2780, 2896, 3305, 3620, 5288, 5560, 6610, 7240, 10576, 11120, 13220, 14480, 25159, 26440, 50318, 52880, 91879, 100636, 119641, 125795, 183758, 201272, 239282, 251590, 367516, 402544, 459395, 478564, 503180, 598205, 735032, 918790, 957128, 1006360, 1196410, 1470064, 1837580, 1914256, 2012720, 2392820, 3675160, 4785640, 7350320, 9571280, 16630099, 33260198, 66520396, 83150495, 133040792, 166300990, 266081584, 332601980, 665203960, 1330407920]

約数ペア:

[(1, 1330407920), (2, 665203960), (4, 332601980), (5, 266081584), (8, 166300990), (10, 133040792), (16, 83150495), (20, 66520396), (40, 33260198), (80, 16630099), (139, 9571280), (181, 7350320), (278, 4785640), (362, 3675160), (556, 2392820), (661, 2012720), (695, 1914256), (724, 1837580), (905, 1470064), (1112, 1196410), (1322, 1006360), (1390, 957128), (1448, 918790), (1810, 735032), (2224, 598205), (2644, 503180), (2780, 478564), (2896, 459395), (3305, 402544), (3620, 367516), (5288, 251590), (5560, 239282), (6610, 201272), (7240, 183758), (10576, 125795), (11120, 119641), (13220, 100636), (14480, 91879), (25159, 52880), (26440, 50318)]