1393840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:170

約数の個数: 80

約数和(自身を含む): 3928320

約数和(自身を除く): 2534480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 131, 133, 140, 152, 190, 262, 266, 280, 304, 380, 524, 532, 560, 655, 665, 760, 917, 1048, 1064, 1310, 1330, 1520, 1834, 2096, 2128, 2489, 2620, 2660, 3668, 4585, 4978, 5240, 5320, 7336, 9170, 9956, 10480, 10640, 12445, 14672, 17423, 18340, 19912, 24890, 34846, 36680, 39824, 49780, 69692, 73360, 87115, 99560, 139384, 174230, 199120, 278768, 348460, 696920, 1393840]

約数ペア:

[(1, 1393840), (2, 696920), (4, 348460), (5, 278768), (7, 199120), (8, 174230), (10, 139384), (14, 99560), (16, 87115), (19, 73360), (20, 69692), (28, 49780), (35, 39824), (38, 36680), (40, 34846), (56, 24890), (70, 19912), (76, 18340), (80, 17423), (95, 14672), (112, 12445), (131, 10640), (133, 10480), (140, 9956), (152, 9170), (190, 7336), (262, 5320), (266, 5240), (280, 4978), (304, 4585), (380, 3668), (524, 2660), (532, 2620), (560, 2489), (655, 2128), (665, 2096), (760, 1834), (917, 1520), (1048, 1330), (1064, 1310)]