19813580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2267}}^1$

素因数の和:2318

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 25909300

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 2185, 2267, 4370, 4534, 8740, 9068, 11335, 22670, 43073, 45340, 52141, 86146, 104282, 172292, 208564, 215365, 260705, 430730, 521410, 861460, 990679, 1042820, 1981358, 3962716, 4953395, 9906790, 19813580]

約数ペア:

[(1, 19813580), (2, 9906790), (4, 4953395), (5, 3962716), (10, 1981358), (19, 1042820), (20, 990679), (23, 861460), (38, 521410), (46, 430730), (76, 260705), (92, 215365), (95, 208564), (115, 172292), (190, 104282), (230, 86146), (380, 52141), (437, 45340), (460, 43073), (874, 22670), (1748, 11335), (2185, 9068), (2267, 8740), (4370, 4534)]