19306660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^2$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 45501120

約数和(自身を除く): 26194460

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 47, 76, 92, 94, 95, 115, 188, 190, 230, 235, 380, 437, 460, 470, 874, 893, 940, 1081, 1748, 1786, 2162, 2185, 2209, 3572, 4324, 4370, 4418, 4465, 5405, 8740, 8836, 8930, 10810, 11045, 17860, 20539, 21620, 22090, 41078, 41971, 44180, 50807, 82156, 83942, 101614, 102695, 167884, 203228, 205390, 209855, 254035, 410780, 419710, 508070, 839420, 965333, 1016140, 1930666, 3861332, 4826665, 9653330, 19306660]

約数ペア:

[(1, 19306660), (2, 9653330), (4, 4826665), (5, 3861332), (10, 1930666), (19, 1016140), (20, 965333), (23, 839420), (38, 508070), (46, 419710), (47, 410780), (76, 254035), (92, 209855), (94, 205390), (95, 203228), (115, 167884), (188, 102695), (190, 101614), (230, 83942), (235, 82156), (380, 50807), (437, 44180), (460, 41971), (470, 41078), (874, 22090), (893, 21620), (940, 20539), (1081, 17860), (1748, 11045), (1786, 10810), (2162, 8930), (2185, 8836), (2209, 8740), (3572, 5405), (4324, 4465), (4370, 4418)]