1381364410

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1\times {\mathrm{661}}^1$

素因数の和:1351

約数の個数: 64

約数和(自身を含む): 2779764480

約数和(自身を除く): 1398400070

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 323, 646, 647, 661, 1294, 1322, 1615, 3230, 3235, 3305, 6470, 6610, 10999, 11237, 12293, 12559, 21998, 22474, 24586, 25118, 54995, 56185, 61465, 62795, 109990, 112370, 122930, 125590, 208981, 213503, 417962, 427006, 427667, 855334, 1044905, 1067515, 2089810, 2135030, 2138335, 4276670, 7270339, 8125673, 14540678, 16251346, 36351695, 40628365, 72703390, 81256730, 138136441, 276272882, 690682205, 1381364410]

約数ペア:

[(1, 1381364410), (2, 690682205), (5, 276272882), (10, 138136441), (17, 81256730), (19, 72703390), (34, 40628365), (38, 36351695), (85, 16251346), (95, 14540678), (170, 8125673), (190, 7270339), (323, 4276670), (646, 2138335), (647, 2135030), (661, 2089810), (1294, 1067515), (1322, 1044905), (1615, 855334), (3230, 427667), (3235, 427006), (3305, 417962), (6470, 213503), (6610, 208981), (10999, 125590), (11237, 122930), (12293, 112370), (12559, 109990), (21998, 62795), (22474, 61465), (24586, 56185), (25118, 54995)]